作者单位:
Univ N Carolina, Dept Periodontol, Sch Dent, Chapel Hill, NC 27599 USA
[1]
Harvard Univ, Brigham & Womens Hosp, Dept Obstet & Gynecol, Obstet & Gynecol Epidemiol Ctr,Med Sch
[2]
Harvard Univ, Brigham & Womens Hosp, Channing Div Network Med, Dept Med,Med Sch, Boston, MA 02115
[3]
发布时间
2018-08-24