5Bennett HA,Einarson A,Taddio A et al.Prevalence of de-pression during pregnancy:systematic review[J].ObstetGynecol,2004,103:698.
6Lowe NK.Maternal confidence for labor:development of theChildbirth Self-Efficacy Inventory[J].Res Nurs Health,1993,16(2):141.
7Larsen KE,Hara MWO,Brewer KK et al.A prospective studyof self-efficacy expectancies and labour pain[J].Journal ofReproductive and Infant Psychology,2001,19(3):203.
8Manning MM,Wright TL.Self-efficacy expectancies,out-come expectancies,and the persistence of pain control inchildbirth[J].J Pers Soc Psychol,1983,45(2):421.