STUDY OF PATTERN OF HEROIN ABUSE IN KOLKATA AND SUBURB
DISSERTATION SUBMITTED FOR THE DEGREE OF DOCTOR OF MEDICINE (PSYCHIATRY)
OF THE UNIVERSITY OF CALCUTTA 1990 – 92
KEDAR RANJAN BANDYOPADHYAY M.B.B.S.(CAL), D.P.M.(CAL)
UNIVERSITY COLLEGE OF MEDICINE, CALCUTTA UNIVERSITY