طراحی یک مطالعه چندگانه ارزیابی تاثیرات اختلالات حاد در افراد، خانواده ها و جوامع

Through collaboration, two sites conducting independent research developed convergent research methods to enable pooling of data, and by extension increased power, for future analyses. This method of collaboration is a novel model for future epidemiological research of tic disorders.