Avtor
South Africa. Dept. of National Health and Population Development
10
South Africa. Dept. of Health
5
South African Haemophilia Foundation
3
Carcavallo, Rodolfo R.
1
Centro studi per la tuberculosi e per le malattie dell'apparato respiratorio "C. Forlanini."
1
Davis, Walter
1
Ethnikē Statistikē Hypēresia tēs Hellados
1
Goranov, Hristo
1
International Agency for Research on Cancer
1
Istituto "Carlo Forlanini."
1
Jensen, Ole Møller
1
Københavns universitet
1
Pakistan. Ministry of Health and Social Welfare. Primary Health Care Cell
1
Universidad de Buenos Aires
1
︠T︡Sentŭr za nauchno-tekhnicheska i ikonomicheska informa︠t︡si︠i︡a po selsko i gorsko stopanstvo (Selskostopanska akademi︠i︡a Georgi Dimitrov)
1