a Whiteford-Cohen production ; Video Services, Dept. of Physical Therapy, University of Maryland, School of Medicine ; producers, Susan Hadary Cohen, William A. Whiteford ; director, William A. Whiteford
a Whiteford-Cohen production for University of Maryland at Baltimore, Dept. of Physical Therapy ; producers, William A. Whiteford, Susan Hadary Cohen ; director, William A. Whiteford