Drop-out and Newcomer Bias in a Community Cardiovascular Follow-up Study
JOOSTE, P L, YACH, D, STEENKAMP, H J, BOTHA, J L, ROSSOUW, J EVolume:
19
Year:
1990
Language:
english
Journal:
International Journal of Epidemiology
DOI:
10.1093/ije/19.2.284
File:
PDF, 315 KB
english, 1990