Simultaneous gastric and plasma immunoreactive plasma carcinoembryonic antigen in 108 patients undergoing gastroscopy.
Bunn PA, Cohen MI, Widerlite L, Nugent JL, Matthews MJ, Minna JD. Simultaneous gastric and plasma immunoreactive plasma carcinoembryonic antigen in 108 patients undergoing gastroscopy. Gastroenterology. 1979 Apr; 76(4):734-41.