Summary of evidences for prevention and intervention of anxiety, depression, and sadness in patients undergoing induction of labor in second trimester 
Zou Ting, Chen Yun, Huang Meiling, Li Na, Liu Bing, Yang Shuai
International Medicine and Health Guidance News . 2022, (16): 2245 -2250 .  DOI: 10.3760/cma.j.issn.1007-1245.2022.16.006