00695nam a2200193Ia 4500 CTU_30249 210402s9999 xx 000 0 und d 614.44 W927a WHO WHO AIDS series N10 School health education to prevention to prevent AIDS and sexually transmitted diseases WHO Geneva WHO 1992 acquired immunodeficiency syndrome - prevention and control,health education,school health services,sexually transmitted diseases - prevention and control Nguyễn Quang Điền, 990511 Trung tâm Học liệu Trường Đại học Cần Thơ