TY - BOOK AU - Nagpal Inderjeet Singh AU - Dr Daya Sharma Supervisor AU - University of Delhi. Faculty of Medical Sciences. Department of Paediatrics ED - University of Delhi. Faculty of Medical Sciences. Department of Paediatrics TI - Serological response to oral polio vaccine in infants with an additional dose at birth : A comparative study with the conventional schedule PY - 1990/// KW - CHILDREN - DISEASES ER -