RT Journal Article SR Electronic T1 G. I. Watson. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 506 OP 506 VO 29 IS 205 A1 R. J. Pinsent YR 1979 UL http://bjgp.org/content/29/205/506.abstract AB