[Prognosis as a trend in the research of Comecon member countries in the field of environmental hygiene].
D002031:Bulgaria; D003604:Czechoslovakia; D004782:Environmental Health; D005859:Germany, East; D006814:Hungary; D007391:International Cooperation; D011044:Poland; D011379:Prognosis; D012106:Research; D012383:Romania; D014586:USSR
Prognozirovanie kak napravlenie issledovaniĭ stran-chlenov SEV v oblasti gigieny okruzhaiushcheĭ sredy