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Human birth and before and after
Normal growth adolescence maturity and death
19 other sections not shown
abnormal accidents addiction adult alcohol Australia baby bacteria become behaviour birth blood pressure body brain cancer cause cells changes chemical chest chromosome chronic cigarette smoking condition coronary occlusion cough deafness death develop diet difficulty diphtheria doctor dose drug dependence eating effects emotional fact factors feel fever German measles gonorrhoea growth health education hearing heart disease human immunisation immunity individual infection infectious diseases involved kind learning living lung lung cancer marihuana measles mental illness mentally retarded methods milk muscle noise normal occur organisations organs ovum pain parents patient person physical physical dependence pills poisonous pollution possible pregnancy prevent problems programmes radiation responsible result rheumatic fever risk saturated fats serious sexual skin sometimes specific speech spirochaete spread substances suffer symptoms syphilis teacher teaching tetanus tissue treatment tuberculosis tubes usually venereal diseases virus