Plan B, One Step not taken: politics trumps science yet again.
Office of Population Research, Princeton University, Princeton, NJ 08554, USA. kcleland@Princeton.edu
Kelly
K
Cleland
Jeffrey F
JF
Peipert
Carolyn
C
Westhoff
Scott
S
Spear
James
J
Trussell
D044363:Contraception, Postcoital; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000600:supply & distribution* / Q000627:therapeutic use; D014481:United States; D014486:United States Food and Drug Administration / Q000331:legislation & jurisprudence*
D016912:Levonorgestrel