RT Journal Article SR Electronic T1 PSYCHOPHARMACOLOGY OF SLEEP JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 178 OP 178 VO 33 IS 248 A1 A. D. Clift YR 1983 UL http://bjgp.org/content/33/248/178.1.abstract AB