开滦集团400例急性胰腺炎流行病学及危险因素分析
张冰1，朱国玲2*，孙秋1，吉瑞更1
Journal of Hebei Medical University . 2020, (6): 723 -727 .  DOI: 10.3969/j.issn.1007-3205.2020.06.023