1. Communicating with the patient;Ley, P.; S, Spelman M.,1967
2. Reduction of postoperative pain by encouragement and instruction of patients. A study of doctor-patient rapport;D, Egbert L.; E, Battit G.; E, Welch C.; K, Bartlett M.;N Engl J Med,1964
3. Communications in an out-patient setting;Ley, P.; S, Spelman M.;Br J Soc Clin Psychol,1965
4. Quantitative study of doctor-patient communication;B, Joyce C.R.; G, Caple; M, Mason; E, Reynolds; A, Mathews J.;Q J Med,1969
5. Medical News. Br Med J 1978; ii: 1796.