Risk of oral contraceptives and recency of market introduction.
Vandenbroucke
J P
JP
Bloemenkamp
K W
KW
Helmerhorst
F M
FM
Rosendaal
F R
FR
D000293:Adolescent; D000328:Adult; D003280:Contraceptives, Oral, Synthetic / Q000008:administration & dosage*; D017135:Desogestrel / Q000008:administration & dosage; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000008:administration & dosage; D009644:Norgestrel / Q000008:administration & dosage / Q000031:analogs & derivatives; D009652:Norpregnenes / Q000008:administration & dosage; D016017:Odds Ratio; D013997:Time Factors
D003280:Contraceptives, Oral, Synthetic; D009652:Norpregnenes; C033273:Gestodene; D009644:Norgestrel; D016912:Levonorgestrel; D017135:Desogestrel; C017576:norgestimate