ÇëÊäÈëÒª²éѯµÄ´Ê£º Çл»´Êµä
Èç¹ûδÄܲ鵽ÄúµÄ½á¹û£¬ÇëÓÅ»¯ËÑË÷ºóÖØвéѯ¡£
cohort study
[ҩѧӢºº´Êµä]
ÊÇʲôÒâ˼£¬cohort studyµÄ½âÊÍ£¬cohort studyµÄ·Òë
[Å©ÄÁÁÖÓ¢ºº´Êµä] cohort study
[Ó¢ººÐÄÀíѧ´ó´Êµä] cohort study
[»·¾³Ó¢ºº´Êµä] cohort study
¸ü¶à>>