MeSH definition : Surveys that measure the usage rate of CONTRACEPTIVE DEVICES or CONTRACEPTIVE AGENTS.; Collections of data, obtained from voluntary subjects, that measure the usage rate
of methods of CONTRACEPTION; CONTRACEPTIVE DEVICES; or CONTRACEPTIVE AGENTS.;
Surveys that measure the usage rate of CONTRACEPTIVE DEVICES or CONTRACEPTIVE AGENTS. Collections of data, obtained from voluntary subjects, that measure the usage rate
of methods of CONTRACEPTION; CONTRACEPTIVE DEVICES; or CONTRACEPTIVE AGENTS.