RT Journal Article SR Electronic T1 TEXTBOOK OF GENERAL MEDICINE AND PRIMARY CARE JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 378 OP 378 VO 38 IS 313 A1 Penny A. Owen YR 1988 UL http://bjgp.org/content/38/313/378.2.abstract AB