RT Journal Article
SR Electronic
T1 On the Nature and Analysis of Clustered Data
JF The Annals of Family Medicine
JO Ann Fam Med
FD American Academy of Family Physicians
SP 199
OP 200
DO 10.1370/afm.197
VO 2
IS 3
A1 Stephen J. Zyzanski
A1 Susan A. Flocke
A1 L. Miriam Dickinson
YR 2004
UL http://www.annfammed.org/content/2/3/199.abstract
AB