Young people in Europe. Adolescent health -- sex education.
D000293:Adolescent; D000367:Age Factors; D001208:Asia; D001211:Asia, Western; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D004467:Economics; D004493:Education; D005060:Europe; D005061:Europe, Eastern; D006262:Health; D006301:Health Services Needs and Demand; D019359:Knowledge; D011153:Population; D011154:Population Characteristics; D018456:Reproductive Medicine; D012426:Russia; D012736:Sex Education