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Statistical Methods & Applications > 2012 > 21 > 4 > 437-452
Journal of Clinical Epidemiology > 2011 > 64 > 9 > 993-1000
Statistical Methods & Applications > 2012 > 21 > 4 > 437-452
Journal of Clinical Epidemiology > 2011 > 64 > 9 > 993-1000