Analysis of the 4-week prevalence rate and influencing factors of Chinese adult residents#br#
GUO Zhi-wang， QIN Pu, ZHANG Rui, YUAN Yu-qi, WANG Wen-juan, WANG Li-qin*
Journal of Hebei Medical University . 2020, (4): 401 -404 .  DOI: 10.3969/j.issn.1007-3205.2020.04.007