TY  - JOUR
A1  - van der Lee, J.H.
A1  - Mokkink, L.W.
A1  - Grootenhuis, M.A.
A1  - Heymans, H.S.
A1  - Offringa, M.
T1  - Definitions and measurement of chronic health conditions in childhood: A systematic review
Y1  - 2007
DO  - 10.1001/jama.297.24.2741
JF  - JAMA 
VL  - 297
IS  - 24
SP  - 2741
EP  - -2751

ER  -