Fibimol P P An open clinical trial to study the efficacy of panchagavaya ghrta on cognitive domain in down's syndrome guidence of dr a k manojkumar/ v p s v ayurveda college, kottakkal - Kottakkal V p s v ayurveda college, kottakkal 2012 - 91 MAN 16 Dewey Class. No.: MAN / FIB/OP