Lessons in sex.
D000293:Adolescent; D001291:Attitude of Health Personnel; D005260:Female; D006291:Health Policy / Q000331:legislation & jurisprudence; D006801:Humans; D008297:Male; D037141:Mandatory Programs / Q000458:organization & administration*; D009726:Nurses / Q000523:psychology*; D011247:Pregnancy; D011253:Pregnancy in Adolescence / Q000517:prevention & control* / Q000706:statistics & numerical data; D012736:Sex Education / Q000458:organization & administration*; D013222:State Medicine / Q000331:legislation & jurisprudence; D006113:United Kingdom / Q000453:epidemiology