Daniel Jacob du Plessis, South African surgeon (Paarl, Western Cape Province 17 May 1918 – 12 September 1999)
Pioneered work on the aetiology of peptic ulceration
Showed the contribution of the bile reflux to the genesis of gastric ulceration
Pathogenesis of gastric ulceration. Lancet 1:974-8, 1965
His books Principles of surgery: a new approach (1968) and A synopsis of surgical anatomy (1975) were used internationally