TY - BOOK AU - Khanna Amit AU - Dr. Dhanesh K. Gupta Gu. AU - University of Delhi. Faculty of Medical Sciences. Department of Psychiatry ED - University of Delhi. Faculty of Medical Sciences. Department of Psychiatry TI - Frequency and pattern of substance use in patients of schizophrenia : A hospital based study PY - 2008/// KW - PSYCHIATRY ER -