W. Blackwelder
发表
W. Blackwelder,
H. Brewer,
E. Schaefer,
1978,
The Lancet.
R. Edelman,
W. Blackwelder,
R. Gibbs,
1996,
American journal of obstetrics and gynecology.
M. Klebanoff,
D. Eschenbach,
M. Matteson,
1991,
American journal of obstetrics and gynecology.
E. Gordon,
Chawla,
W. Blackwelder,
2016
.
J. Carey,
R. Gibbs,
M. Klebanoff,
1995,
American Journal of Obstetrics and Gynecology.
A. Elixhauser,
L. Simonsen,
W. Blackwelder,
2001,
The Lancet.
M. Klebanoff,
R. Edelman,
D McNellis,
1992,
American journal of obstetrics and gynecology.