TY  - BOOK
ED  - International Norgestrel Symposium
TI  - The second International Norgestrel Symposium: some metabolic considerations of oral contraceptive usage : proceedings of the 1974 symposium held at the Royal College of Physicians, London, England 
T2  - International congress series
SN  - 0444151591
CY  - Amsterdam, New York
PB  - Excerpta Medica, American Elsevier Pub. Co., c 1974.
KW  - Contraceptive
KW  - Congresses
N1  - Includes bibliographies and index
ER  -