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A Clinical Case of Maxillary Sinus Abscess in a Holstein Cow OAK
髙橋, 英二; 山田, 一孝; 古林, 与志安; 猪熊, 壽; TAKAHASHI, Eiji; YAMADA, Kazutaka; KOBAYASHI, Yoshiyasu; INOKUMA, Hisashi.
7歳6カ月齢のホルスタイン種乳牛が顕著ないびき音を呈し,さらに左側頬骨部の一部で波動感を有する腫瘤が触知された.頭部X線検査により上顎洞内への液体貯留と上顎第3後臼歯の歯槽骨の融解が認められ,歯性上顎洞炎に継発する大型膿瘍であることが推察された.病理解剖により病変は上顎洞内膿瘍であることが明らかとなった.牛における頭部X線検査が上顎洞内膿瘍の診断及び病態の把握に有用であった.
Palavras-chave: ホルスタイン; 上顎洞内膿瘍; 歯性上顎洞炎.
Ano: 2016 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4257
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An Autoradiogram of Skeletal Muscle from a Pig Raised on a Farm within 20 km of the Fukushima Daiichi Nuclear Power Plant OAK
YAMAGUCHI, Toshiro; SAWANO, Kaita; FURUHAMA, Kazuhisa; MORI, Chizuo; YAMADA, Kazutaka; 山田, 一孝.
We utilized autoradiography to visualize radioactive contamination in the skeletal muscles of a pig raised within 20 km of the Fukushima Daiichi nuclear power plant following the nuclear accident. The autoradiogram of control muscle showed relatively homogenous exposure. In contrast, the autoradiogram of affected muscle showed a heterogeneous and sporadically dense imaging pattern. Photo luminescence densities of the affected and control muscles were 3.89 ± 0.67 and 2.13 ± 0.43 PSL/mm2, respectively. This difference indicated that radioactive cesium was distributed in the skeletal muscle of the affected pig.
Palavras-chave: Autoradiography; Cesium; Potassium; Radioactive contamination.
Ano: 2013 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3900
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Basic Assessment of Diagnosis by MDCT in Horses OAK
SASAKI, Naoki; KIKUCHI, Takuya; YAMADA, Kazutaka; HIGUCHI, Tohru; SATO, Motoyoshi; YAMADA, Haruo; 佐々木, 直樹; 山田, 一孝.
In this equine study, we used an MDCT unit and a trestle for large animals to assess the utility of MDCT in the diagnosis locomotor system disorders and problems in the head and spine. We used a mature thoroughbred horse under general anesthesia and 5 specimens. For specimens, MDCT images were compared with other images taken by a computed radiography X-ray unit. In the live horse, use of the trestle for large animals enabled scanning under general anesthesia. In specimens, MDCT created 3D images of the fractured lesions and evaluation of multiple cross-sectional and sagittal images was possible. Further, multiple sagittal images and virtual endoscopic images revealed details of a spinal canal stenosis in the swayback case. These results indicate that MDCT...
Palavras-chave: Equine; Locomotor system disorders; MDCT; 3D image analysis.
Ano: 2007 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3103
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Brain Abscess in a Japanese Black Calf : Utility of Computed Tomography (CT) OAK
EL-KHODERY, Sabry; YAMADA, Kazutaka; AOKI, Daisuke; KAMIO, Kyouhei; KISHIMOTO, Miori; SHIMIZU, Junichiro; KOBAYASHI, Yoshiyasu; ISHII, Mitsuo; INOKUMA, Hisashi; YAMAUCHI, Sen-ichi; MATSUI, Takane; 山田, 一孝; 古林, 与志安; 石井, 三都夫; 猪熊, 壽.
Computed tomography (CT) was used for diagnosis of brain abscess in a 6-month-old, Japanese black calf presented with neurological dysfunction, compulsive circling and vision disturbance. CT images showed asymmetric lateral ventricles, and presence of intra-cranial multiple low absorption lesions surrounded by capsule suggestive of abscess in the right cerebral hemisphere. Postmortem examination revealed marked swelling of right cerebral hemisphere and olfactory bulb. Multilocular large abscess containing creamy pus was found to occupy most area of periventricular and lateral ventricle. Fusobacterium necrophrum was isolated from the abscess contents as the causative agent. These results demonstrate that CT is useful tool for tentative diagnosis of bovine...
Palavras-chave: Bovine; Brain abscess; CT.
Ano: 2008 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3926
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Computed Tomographyを用いた黒毛和種胸最長筋におけるあらい脂肪交雑の推移 OAK
山下, 直樹; 山口, 悠; 阿佐, 玲奈; 山田, 一孝; 大井, 幹記; 口田, 圭吾; YAMADA, Kazutaka; KUCHIDA, Keigo.
黒毛和種胸最長筋のCT画像を用いて最もあらい脂肪交雑割合の推移を調査した.供試牛は黒毛和種去勢牛46頭であり,27〜29ヵ月齢で屠畜された.リブロースブロック(第7〜12肋骨間)について屠畜から約1週間後にCT撮影を行い,画像解析によって最もあらい脂肪交雑割合(%)を算出した.CT画像を筋肉頭側,筋肉尾側,肋骨頭側,肋骨尾側の4つの位置に分類し,1頭のブロック肉毎にそれぞれの位置で最大の値を代表値とした.最もあらい脂肪交雑割合の位置ごとの平均は筋肉頭側,筋肉尾側,肋骨頭側,肋骨尾側でそれぞれ7.4,5.6,5.1および6.7%となり,筋肉頭側は筋肉尾側および肋骨尾側と比較して2%程度最もあらい脂肪交雑割合が高く(P < 0.05),肋骨尾側は肋骨頭側と比較して1.6%高かった(P < 0.05).また,最もあらい脂肪交雑割合の種雄牛による差はほとんど見られなかったことから,極端にあらい脂肪交雑は種雄牛に関わらず発生することが示された.
Ano: 2015 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4249
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CTとMRIのコントラストの違い : 断層画像の使い分けについて OAK
山田, 一孝; 上野, 博史; YAMADA, Kazutaka; UENO, Hiroshi.
http://www.jstage.jst.go.jp/article/dobutsurinshoigaku/12/1/12_27/_article/-char/ja/
Ano: 2003 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2926
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Early-Stage Bioassay for Monitoring Radioactive Contamination in Living Livestock OAK
YAMAGUCHI, Toshiro; SAWANO, Kaita; KISHIMOTO, Miori; FURUHAMA, Kazuhisa; YAMADA, Kazutaka; 山田, 一孝.
Soil samples from the ground surface and feces and blood from a mixed-breed male pig were collected on April 10, 2011 at a farm within 20 km of the Fukushima Daiichi nuclear power plant. The radioactivity of each sample was measured using a Ge semiconductor detector. Despite the fact that the pig had been fed non-contaminated imported feed, 131I, 134Cs and 137Cs were detected in the feces, and 134Cs and 137Cs were detected in the blood clots. Because it is considerably difficult to measure radioactive contamination in the edible muscle of living livestock, bioassays are an option for the screening of radioactive contamination in living livestock to ensure food safety.
Palavras-chave: Bioassay; Cesium; Fukushima; Iodine; Radioactive contamination.
Ano: 2012 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3893
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Effects of Gelatin Hydrogel Microsphere Containing Platelet Rich Plasma Dairy Cows with Sole Ulcers OAK
内山, 裕貴; 都築, 直; 徐, 鍾筆; 山田, 一孝; 羽田, 真悟; 眞鍋, 弘行; 田畑, 泰彦; 佐々木, 直樹.
自家血液から作製された多血小板血漿(Platelet rich plasma,以下PRP)は,アルギン酸ゲル剤として患部に塗布することで蹄底潰瘍への良好な治癒効果が認められた.しかし,効果を持続させるという点で不十分な方法であった.そこで本研究では,徐放剤としてゼラチンマイクロスフィア(以下 GM)を用いた新しい塗布剤を作製し,治療効果を検討した.PRP含浸GM混合アルギン酸ゲル処置群(PRP群,n=10)とアルギン酸ゲルのみ処置群 (対照群,n=9)を比較した.蹄底潰瘍面積の欠損割合は,PRP群で処置後1,2及び3週目で約45%,17%及び5%と推移し,対照群と比較して有意な角質再生効果がみられた.また,PRP群では処置後2週目に圧痛が消失したが,対照群では痛みは継続していた.以上のことから,PRP含浸GM混合アルギン酸ゲルは乳牛の蹄底潰瘍に有効であることが明らかとなった.
Palavras-chave: ゼラチンマイクロスフィア; 多血小板血漿; 蹄底潰瘍.
Ano: 2013 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3905
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Evaluation of Motion Correction Processing in Equine Bone Scintigraphy by Scheffé’s Method of Paired Comparisons OAK
YAMAGUCHI, Toshiro; ENDO, Yoshiro; NAMBO, Yasuo; SATO, Fumio; SASAKI, Naoki; YAMADA, Kazutaka; 南保, 泰雄; 佐々木, 直樹; 山田, 一孝.
Equine bone scintigraphy is usually performed with horses in standing position under sedation. However, swaying motion often leads to poor-quality images. To examine the usefulness of motion correction (MC) processing, equine bone scintigrams were evaluated using Scheffé’s method of paired comparisons. A significant difference in evaluation scores was detected by analysis of variance (F test, P<0.01). According to all observers, Yardstick analysis scores were higher for images use of MC processing than for those no use of MC processing, for all parts. Overall scores of 5 observers were as follows: without MC 100% acquisition time (AT, lowest), use of MC with 25% AT, MC 50% AT, MC 75% AT and MC 100% AT (highest). Thus, MC processing shortens AT in equine...
Palavras-chave: Bone scintigraphy; Equine; Motion correction; Scheffé’s method of paired comparisons.
Ano: 2013 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3894
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Experimental assessment of bone mineral density using quantitative computed tomography in Holstein dairy cows OAK
MAETANI, Ayami; ITOH, Megumi; NISHIHARA, Kahori; AOKI, Takahiro; OHTANI, Masayuki; SHIBANO, Kenichi; KAYANO, Mitsunori; YAMADA, Kazutaka; 伊藤, めぐみ; 滄木, 孝弘; 芝野, 健一; 茅野, 光範; 山田, 一孝.
The aim of this study was to assess the measurement of bone mineral density (BMD) by quantitative computed tomography (QCT), comparing the relationships of BMD between QCT and dual-energy X-ray absorptiometry (DXA) and between QCT and radiographic absorptiometry (RA) in the metacarpal bone of Holstein dairy cows (n=27). A significant positive correlation was found between QCT and DXA measurements (r=0.70, P<0.01), and a significant correlation was found between QCT and RA measurements (r=0.50, P<0.01). We conclude that QCT provides quantitative evaluation of BMD in dairy cows, because BMD measured by QCT showed positive correlations with BMD measured by the two conventional methods: DXA and RA.
Palavras-chave: Bone mineral density; Dairy cow; Dual-energy X-ray absorptiometry; Quantitative computed tomography; Radiographic absorptiometry.
Ano: 2016 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4321
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Growth, hematologic and serum biochemical effects of hatakeshimeji (Lyophyllum decastes Sing.)extracts in calves OAK
稲沢, 直生実; 山川, 和宏; 石井, 三都夫; 李, 奇子; 室谷, 直義; 池水, 智博; 山田, 一孝; ISHII, Mitsuo; YAMADA, Kazutaka.
ハタケシメジ抽出物がホルスタイン種哺乳子牛の成長および血液学的検査値に与える影響について検討した.試験群は,ハタケシメジ抽出物投与群(雌,n=5)と対照群(雌,n=5)とし,投与群には朝晩の哺乳時にハタケシメジ抽出物(160mg)3カプセルを投与した.試験期間は,出生から8週間とした.試験期間中,投与群と対照群との間で増体に差が認められず,投与群の血液学的および血清生化学検査値は対照群と同様の変化を示した.このことから,ハタケシメジ抽出物は,哺乳子牛の健康状態,増体および血液学的値に悪影響を及ぼさないと考えられた.
Palavras-chave: 子牛 ハタケシメジ抽出物; 血液学的検査 血清生化学検査.
Ano: 2011 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4207
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Investigation of the Short-Term Effect of Chemonucleolysis with Chondroitinase ABC OAK
YAMADA, Kazutaka; TANABE, Shinobu; UENO, Hiroshi; OINUMA, Akemi; TAKAHASHI, Toyomi; MIYAUCHI, Satoshi; SHIGENO, Satoshi; HIROSE, Tsuneo; MIYAHARA, Kazuro; SATO, Motoyoshi; 山田, 一孝; 宮原, 和郎.
Chondroitinase ABC (C-ABC) is expected to be a novel agent for chemonucleolysis. The effect of C-ABC was investigated by magnetic resonance (MR) and radiograph. C-ABC was administered into the lumbar intervertebral disks on the clinically normal beagles (n=5), in a dose of 50 μl (12.5 units as C-ABC). MR scans were performed pre-dose, and 1, 3, 7, 14 and 28 days after administration of C-ABC, and the signal intensity (SI) of the nucleus pulposus was measured. Radiographs were taken pre-dose, and 1, 2, 3, 4, 5, 6, 7, 14 and 28 days post-dose, to evaluate narrowing of the disk space in terms of height index (HI). In addition, the quantity of the chondroitin sulfate (CS) and the hyaluronic acid (HA) in the nucleus pulposus were measured by high performance...
Palavras-chave: Canine; Chemonucleolysis; Chondroitinase ABC (C-ABC); Height index (HI); Magnetic resonance (MR).
Ano: 2001 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4181
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Marbling evaluation by using X-ray computed tomography on beef primal cuts OAK
口田, 圭吾; 高長, 拓也; 山下, 直樹; 山口, 悠; 李, 奇子; 山田, 一孝; KUCHIDA, Keigo; YAMADA, Kazutaka.
X線Computed Tomography(CT)画像から牛部分肉における脂肪交雑の評価の可能性およびその精度を検証した.供試牛2頭から胸最長筋を含む8つのブロック肉を採取しCT撮影を行った.その後,ブロック肉を厚さ2cm間隔でスライスし,ミラー型撮影装置を用いて高精細画像を得た.CT画像および高精細画像(同一面60組)をそれぞれ画像解析し,画像解析4形質(筋肉面積,脂肪面積割合,あらさ指数,細かさ指数)について,それぞれの相関関係を調査した.CT画像と高精細画像から算出した筋肉面積(r=0.991),脂肪面積割合(r=0.927)およびあらさ指数(r=0.861)の相関係数は有意に高い正の値を示した(P<0.01).細かさ指数では低い相関係数(r=0.329,P<0.05)が算出された.X線CT法は,非破壊的に脂肪交雑の面積割合やあらさをある程度,評価することが可能であった.
Palavras-chave: Computed tomography; Image analysis; Japanese Black.
Ano: 2014 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4081
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MDCT Images of the Head of a Horse with Malignant Melanoma OAK
SASAKI, Naoki; MINAMI, Takuto; YAMADA, Kazutaka; SATOH, Motoyoshi; INOKUMA, Hisashi; KOBAYASHI, Yoshiyasu; FURUOKA, Hidefumi; YAMADA, Haruo; 佐々木, 直樹; 山田, 一孝; 猪熊, 壽; 古林, 与志安; 古岡, 秀文.
A 17-year-old, gray Thoroughbred gelding was presented with recurrent epistaxis following exercise for over one year. Multidetector-row computed tomographic (MDCT) examination of the head performed under general anesthesia indicated the presence of malignant melanoma. MDCT examination revealed the exact location and size of masses in the right guttural pouch first identified by endoscopy and in the left guttural pouch unidentified by endoscopy. MDCT examination revealed the presence of a blood clot that filled the right maxillary sinus. The horse was euthanized due to poor prognosis as a riding horse and the owner's decision, and MDCT findings were confirmed by postmortem examination. MDCT is suggested as a useful technique for diagnosis of head problems...
Palavras-chave: Equine; Malignant melanoma; MDCT.
Ano: 2007 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3104
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Peripartum Back Fat Thickness of Multiparous Holstein-Friesian Cows with Displacement of the Abomasum or Ketosis OAK
YAMAKAWA, Kazuhiro; AOKI, Takahiro; MATSUI, Motozumi; YAMADA, Kazutaka; ISHII, Mitsuo; 滄木, 孝弘; 山田, 一孝; 石井, 三都夫.
To establish a method to predict postpartum diseases using prepartum back fat thickness (BFT), the peripartum BFTs of 54 healthy multiparous cows before calving, which were diagnosed with postpartum displacement of the abomasum (DA), clinical ketosis or subclinical ketosis were compared with those of healthy cows from 8 weeks before the expected calving date to 8 weeks after calving. The peripartum BFTs of the cows with DA or clinical ketosis were significantly higher than those of healthy cows. The peripartum BFTs of the cows with subclinical ketosis were not significantly higher than those of the healthy cows.
Palavras-chave: Back fat thickness (BFT); Clinical ketosis; Displacement of the abomasum (DA); Obese cow.
Ano: 2012 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3903
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Pilot Study of Bovine Interdigital Cassetteless Computed Radiography OAK
El-Sayed Ahmed Awad EL-SHAFAEY1) 2); AOKI, Takahiro; ISHII, Mitsuo; YAMADA, Kazutaka; 滄木, 孝弘; 石井, 三都夫; 山田, 一孝.
Twenty-one limbs of bovine cadavers (42 digits) were exposed to interdigital cassetteless imaging plate using computed radiography. The radiographic findings included exostosis, a rough planta surface, osteolysis of the apex of the distal phalanx and widening of the laminar zone between the distal phalanx and the hoof wall. All these findings were confirmed by computed tomography. The hindlimbs (19 digits) showed more changes than the forelimbs (10 digits), particularly in the lateral distal phalanx. The cassetteless computed radiography technique is expected to be an easily applicable method for the distal phalanx rather than a conventional cassette-plate and/or the film-screen cassetteless methods.
Palavras-chave: Bovine; Cassetteless; Computed radiography; Interdigital.
Ano: 2013 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3899
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Preliminary Experiment on the Suppression of Cesium Uptake into the Organs by Bentonite Using a Stable Isotope of Cesium in Calves OAK
山田, 一孝; 山口, 敏朗; 陳, 忠正; 稲沢, 直生実; 石井, 三都夫; 佐々木, 基樹; 木田, 克弥; 岸本, 海織; 古濱, 和久; YAMADA, Kazutaka; ISHII, Mitsuo; SASAKI, Naoki; KIDA, Katsuya.
ベントナイトのセシウム体内移行抑制効果について調べた。実験には,ホルスタイン種子牛6頭を使用し,28日の実験期間中,全頭に安定同位体の塩化セシウム(3.0mg/kg/day)を人工乳に溶解し,投与した。塩化セシウムに加えベントナイト0.5w/v%を人工乳に懸濁した投与群(n=3)と塩化セシウムのみの対照群(n=3)の2群を設定した。実験開始0,1,2,3,7,14,21および28日目に採血,28日目に骨格筋,心臓,肝臓,腎臓および糞便を採材し,ICP-MS (inductively coupled plasma mass spectrometry) によるセシウム濃度を測定した。臓器中のセシウム濃度からベントナイトの効果は明らかではなかったが,血球中セシウム濃度平均値は投与後14日まで投与群が対照群よりも低値を示した。このことから,ベントナイトによるセシウム体内移行抑制効果の可能性が示唆された。
Palavras-chave: ベントナイト; 子牛; 塩化セシウム.
Ano: 2013 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3898
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Radioactive Contamination of a Pig Raised at a Farm within 20 km of the Fukushima Daiichi Nuclear Power Plant OAK
YAMADA, Kazutaka; YAMAGUCHI, Toshiro; SAWANO, Kaita; KISHIMOTO, Miori; FURUHAMA, Kazuhisa; 山田, 一孝; 山口, 敏朗; 澤野, 海太; 岸本, 海織; 古濱, 和久.
福島第一原子力発電所から20km圏内で飼育されていた交雑種豚が,事故17日後に清浄区域へ移動し,移動41日後に試料が採材された。Ge半導体検出器を用いて,バラ,モモ,ロース及び心臓のγ線スペクトルを測定したところ,放射性セシウムの存在が確認された。被検豚は移動前後ともに豚舎で飼育され,生涯汚染のない輸入飼料で飼養されていた。牛肉の放射能汚染の原因は汚染された稲藁と報道されているが,稲藁だけが汚染の原因ではない可能性がある。次世代のために,食の安全の観点から牛肉のみならず他の畜産物についても監視が必要である。
Palavras-chave: Caesium; Food safety; Fukushima; Pig; Pork; Radioactive contamination.
Ano: 2012 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3827
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Use of Contrast-Enhanced CT in the Diagnosis of Abscesses in Cattle OAK
LEE, Ki-Ja; KISHIMOTO, Miori; SHIMIZU, Junichiro; KOBAYASHI, Yoshiyasu; MATSUMOTO, Kotaro; SASAKI, Naoki; ISHII, Mitsuo; INOKUMA, Hisashi; IWASAKI, Toshiroh; MIYAKE, Yoh-Ichi; YAMADA, Kazutaka; 古林, 与志安; 松本, 高太郎; 佐々木, 直樹; 石井, 三都夫; 猪熊, 壽; 山田, 一孝.
We report here the non-contrast and contrast-enhanced computed tomography performed in two calves with brain abscess and multiple pulmonary abscesses with pharyngeal abscess, respectively. Contrast-enhanced computed tomography was useful in the diagnosis of these diseases in both calves. The diseases were confirmed by histopathological examination.
Palavras-chave: Abscess; Cattle; Contrast-enhanced CT; Diagnosis.
Ano: 2011 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3891
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アメリカにおける獣医学教育(文部科学省在外研究員留学報告) OAK
山田, 一孝.
http://nichiju.lin.gr.jp/mag/05504/index.htm
Ano: 2002 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2938
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