Encyclopedia of Integer Sequences. OEIS Foundation. P. D. James, The Private Patient, Knopf, NY, 2008, p. 192. N. J. A. Sloane and Simon Plouffe, The Encyclopedia
2017年4月5日美敦力,以61億美元出售患者护理、深静脉血栓和营养缺乏 (Patient Care, Deep Vein Thrombosis and Nutritional Insufficiency)業務給卡地納健康集團(Cardinal Health) 2018年9月20日美敦力以16.4億美元收購以色列骨科機器人公司Mazor
Error? Getting the Number Right. Effective Clinical Practice. 2000 [2006-06-22]. (原始内容存档于2006-02-06). HealthGrades Quality Study: Patient Safety in American