AU  - Spencer T, Biederman J, Coffey B, Geller D, Wilens T, Faraone S
TI  - THe 4-year course of tic disorders in boys with attention-deficit/hyperactivity disorder
PT  - JOUR
DP  - 1999
TA  - Archives of General Psychiatry
pages = {842-847},
VI  - 56
IP  - 9
AID  - 10.1001/archpsyc.56.9.842 [doi]
4100  - http://dx.doi.org/10.1001/archpsyc.56.9.842
SO  - Archives of General Psychiatry September 1, 1999 56(9):842