Elsevier, Journal of Clinical Epidemiology, 2(57), p. 154-166, 2004
DOI: 10.1016/j.jclinepi.2003.08.005
Elsevier, Journal of Clinical Epidemiology, 2(57), p. 154-166
DOI: 10.1016/s0895-4356(03)00320-2
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