Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Iba Kazuko and Kawasaki Isao and Yamamoto Hideki and Uoi Kouetsu and Kinoshita Michio,Three Cases with Low Levels of Seurm Copper Due to Long-Term Enteral Nutrition.,Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics,03009173,The Japan Geriatrics Society,1999,36,5,365-368,https://cir.nii.ac.jp/crid/1390282680000131328,https://doi.org/10.3143/geriatrics.36.365