[Biological rhythms and tumor markers in man. With special reference to the carcinoembryonic antigen (CEA) and alpha fetoprotein (AFP) in digestive system tumors].
[Biological rhythms and tumor markers in man. With special reference to the carcinoembryonic antigen (CEA) and alpha fetoprotein (AFP) in digestive system tumors]. Acta Gastroenterol Belg. 1987 Jan-Feb; 50(1):12-21.