TY  - JOUR
A1  - Duncan, C.
A1  - Jones, K.
A1  - Moon, G.
T1  - Context, composition and heterogeneity: Using multilevel models in health research
Y1  - 1998
DO  - 10.1016/S0277-9536(97)00148-2
VL  - 46
IS  - 1

ER  -