RT Journal Article SR Electronic T1 Research and confidentiality in 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 863 OP 879 VO 23 IS 137 A1 D. L. Crombie YR 1973 UL http://bjgp.org/content/23/137/863.abstract AB