RT Journal Article SR Electronic T1 COMPUTER EXHIBITION JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 251 OP 251 VO 29 IS 201 A1 R. M. Ridsdill Smith YR 1979 UL http://bjgp.org/content/29/201/251.2.abstract AB