RT Journal Article SR Electronic T1 Statistics and general practice. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 331 OP 333 VO 32 IS 239 A1 I. Russell A1 S. L. Barley YR 1982 UL http://bjgp.org/content/32/239/331.abstract AB