Cortez, E. R.(2004).A COMPREHENSIVE REVIEW OF PUBLISHED ARTICLES ON COLON AND RECTAL CANCER IN THE PHILIPPINES, 1980-2002. St. Luke's Journal of Medicine, 2(2), 3-9
Cortez, Edgardo R. "A COMPREHENSIVE REVIEW OF PUBLISHED ARTICLES ON COLON AND RECTAL CANCER IN THE PHILIPPINES, 1980-2002." St. Luke's Journal of Medicine 2.2 (2004): 3-9.
Cortez, Edgardo R., . "A COMPREHENSIVE REVIEW OF PUBLISHED ARTICLES ON COLON AND RECTAL CANCER IN THE PHILIPPINES, 1980-2002." St. Luke's Journal of Medicine 2, no.2 (2004): 3-9.