TY  - RPRT
TI  - The additive factor method: a differential diagnostic tool in hyperactivity and learning disability.
AU  - J van der Meere
AU  - M van Baal
AU  - J Sergeant
PY  - 1989
DO  - 10.1007/bf00915035
UR  - https://pubmed.ncbi.nlm.nih.gov/2794254/
ID  - 2794254
ER  -