Methodology of epidemiological studies of tic disorders and comorbid psychopathology.
Fallon
T
T
Child Study Center, Yale University School of Medicine, New Haven, Connecticut 06510.
Schwab-Stone
M
M
D004812:Epidemiologic Methods; D006801:Humans; D013981:Tic Disorders / Q000453:epidemiology* / Q000523:psychology