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Crampin, AC;
Mwinuka, V;
Malema, SS;
Glynn, JR;
Fine, PE;
(2001)
Field-based random sampling without a sampling frame: control selection for a case-control study in rural Africa.
Transactions of the Royal Society of Tropical Medicine and Hygiene, 95 (5).
pp. 481-3.
ISSN 0035-9203
https://researchonline.lshtm.ac.uk/id/eprint/16282
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