RT Journal Article SR Electronic T1 Hospital usage by a group practice. A trainer-trainee study. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 294 OP 306 VO 16 IS 4 A1 E. O. Evans A1 K. McBride YR 1968 UL http://bjgp.org/content/16/4/294.abstract AB