RT Journal Article SR Electronic T1 Some methodological problems in studying consultations 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 894 OP 906 VO 26 IS 173 A1 A. Cartwright A1 S. Lucas A1 M. O'Brien YR 1976 UL http://bjgp.org/content/26/173/894.abstract AB