作者单位:
Calif Dept Publ Hlth, Maternal Child & Adolescent Hlth Div, Sacramento, CA USA
[1]
Univ Calif Irvine, Sch Med, Dept Obstet & Gynecol, Irvine, CA 92717 USA
[2]
Inst Publ Hlth, Santa Cruz, CA USA
[3]
Calif Dept Publ Hlth, Ctr Family Hlth, Sacramento, CA USA
[4]
Univ Calif San Francisco, Dept Med, San Francisco, CA 94143 USA
[5]
Stanford Univ, Calif Maternal Qual Care Collaborat, Palo Alto, CA 94304 USA
[6]
发布时间
2017-04-05