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Panel studies in developing countries: case analysis of sample attrition over the past 16 years within the birth to twenty cohort in Johannesburg, South Africa
Shane A. Norris, Linda M. Richter, Stella A. FleetwoodVolume:
19
Year:
2007
Language:
english
Pages:
8
DOI:
10.1002/jid.1390
File:
PDF, 88 KB
english, 2007