RT Journal
T1 HArvard yard, boston, massachusetts
JF Archives of Internal Medicine
JO Archives of Internal Medicine
YR 2011
FD June 13
VO 171
IS 11
SP 1046
OP 1046
DO 10.1001/archinternmed.2011.228
UL http://dx.doi.org/10.1001/archinternmed.2011.228
AB 
Courtesy of: Guy D. Eslick, PhD, MMedSc(Clin Epi), MMedStat, The Whiteley-Martin Research Centre, Nepean Hospital, The University of Sydney, Sydney, Australia.