[SANITARY ENGINEERING AS AN AID IN THE EXPANSION OF HEALTH SERVICES IN UNDERDEVELOPED COUNTRIES].
D003906:Developing Countries; D006296:Health Services; D006801:Humans; D011634:Public Health; D012498:Sanitary Engineering
PUBLIC HEALTH; SANITARY ENGINEERING
A ENGENHARIA M'EDICA COMO AUX'ILIO 'A EXPANS AO DOS SERVI COS DE SA'UDE EM PA'ISES SUBDESENVOLVIDOS.