W. Ledger
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T. Orfanelli,
S. Witkin,
A. Jayaram,
2014,
BJOG : an international journal of obstetrics and gynaecology.
S. Witkin,
I. Linhares,
W. Ledger,
2015,
BJOG : an international journal of obstetrics and gynaecology.
S. Witkin,
P. Giraldo,
I. Linhares,
2000,
American journal of obstetrics and gynecology.
B. Nagy,
S. Witkin,
Z. Papp,
2007,
Human reproduction.
W. Ledger,
M. Blaser,
MJ Blaser,
2013,
BJOG : an international journal of obstetrics and gynaecology.
S. Witkin,
W. Ledger,
J. Hirsch,
1986,
American journal of obstetrics and gynecology.
T. Caputo,
S. Witkin,
W. Ledger,
1985,
American journal of obstetrics and gynecology.
S. Witkin,
W. Ledger,
J. Jeremias,
1988,
The Journal of allergy and clinical immunology.
S. Witkin,
W. Ledger,
J. Jeremias,
2000,
American journal of obstetrics and gynecology.
M. Llabre,
W. Crook,
W. Dismukes,
1991,
The New England journal of medicine.
S. Witkin,
S. Witkin,
W. Ledger,
1983,
American journal of obstetrics and gynecology.
K. Friese,
S. Witkin,
C. Scholz,
2009,
Archives of Gynecology and Obstetrics.
S. Witkin,
W. Ledger,
J. Jeremias,
1989,
Journal of medical and veterinary mycology : bi-monthly publication of the International Society for Human and Animal Mycology.
S. Witkin,
W. Ledger,
J. Jeremias,
1988,
American journal of obstetrics and gynecology.
S. Witkin,
J. Grifo,
W. Ledger,
1993,
American journal of obstetrics and gynecology.
M. Tong,
W. Ledger,
M. Thursby,
1979,
Gastroenterology.
D. Nasioudis,
S. Witkin,
I. Linhares,
2017,
BJOG : an international journal of obstetrics and gynaecology.
J. Grifo,
S. Witkin,
W. Ledger,
1989,
American journal of obstetrics and gynecology.
S. Witkin,
W. Ledger,
1993,
American journal of obstetrics and gynecology.
S. Witkin,
W. Ledger,
J. Jeremias,
1992,
Surgery, gynecology & obstetrics.
S. Witkin,
A. Tóth,
A. Berkeley,
1984,
Fertility and sterility.
L. Galland,
S. Witkin,
W. Ledger,
1991,
The Journal of infectious diseases.
J. Pinotti,
S. Witkin,
P. Giraldo,
2000,
International journal of STD & AIDS.
S. Witkin,
P. Giraldo,
A. Haas,
2000,
Infectious diseases in obstetrics and gynecology.
S. Witkin,
W. Ledger,
D. Roth,
1989,
JAMA.