The pitfalls of using selective data to represent the effectiveness, relevance and utility of the Standard Days Method (SDM) of contraception.
The Evidence Project, Population Council, 4301 Connecticut Ave., Suite 280, Washington, DC 20008, USA. Electronic address: kwright@popcouncil.org.
Kelsey Q
KQ
Wright
The Evidence Project, Population Council, 4301 Connecticut Ave., Suite 280, Washington, DC 20008, USA. Electronic address: khardee@popcouncil.org.
Karen
K
Hardee
Reproductive Health Program, Population Council, 4301 Connecticut Ave., Suite 280, Washington, DC 20008, USA. Electronic address: jtownsend@popcouncil.org.
John W
JW
Townsend
D003267:Contraception; D006801:Humans; D012252:Natural Family Planning Methods