%0 Journal Article
%T The effect of missing values for covariates
%J Epidemiology
%D 2002
%A Whitlock, G.
%A Clark, Tony
%V 13
%N 1
%P 113-113
%X Abstract unavailable.
%G 
%I Lippincott Williams and Wilkins
%@ 1044-3983
%U http://dx.doi.org/