作者单位:
Univ Calif San Diego, Dept Pediat, La Jolla, CA 92093 USA
[1]
Univ Calif San Francisco, Dept Epidemiol & Biostat, San Francisco, CA 94143 USA
[2]
Univ Calif San Francisco, Dept Obstet Gynecol & Reprod Sci, San Francisco, CA USA
[3]
Univ Calif San Francisco, Dept Pediat, 550 16th St,5th Floor, San Francisco, CA 94143 USA
[4]
Stanford Univ, Dept Pediat, Stanford, CA 94305 USA
[5]
Blood Syst Res Inst, San Francisco, CA USA
[6]
发布时间
2017-10-25