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International Scientific Conference on Epidemiology, Beijing, China, 24–26 April 1989
DEREK YACH, YASMIN VON SCHIRNDINGVolume:
4
Year:
1990
Language:
english
Pages:
5
DOI:
10.1111/j.1365-3016.1990.tb00622.x
File:
PDF, 277 KB
english, 1990