Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Orihata Michihiro and Kato Syuichi and Takeuchi Hirohisa and Hata Makoto and Moriwaki Minoru and Kakegawa Teruo,Effect of the Oral Administration of Vitamin B12 to Patients under Distal and Total Gastrectomy.,The Japanese Journal of Gastroenterological Surgery,0386-9768,The Japanese Society of Gastroenterological Surgery,2001,34,5,439-444,https://cir.nii.ac.jp/crid/1390001204915926272,https://doi.org/10.5833/jjgs.34.439