I've posted studies about your body's natural healing powers, thanks to the placebo effect. With that in mind, I believe you'll enjoy Dr. Christopher Kent's latest piece on placebos (free text link below).
Dr. Kent likens the power of the placebo to a doctor's empathy to connect with their patients' emotional needs as well as being able to communicate with them at conscious and subconscious levels.
A physician who can do that is indeed a master healer.
Intent, Healing and the Bodymind -- Beyond the Placebo