Katigbak, A. F. (2003). 2003 US Heart Association Convention highlights: LIFE study included in examination of influential hypertension trials. Philippine Star.
芝加哥风格引文Katigbak, Antonio F. "2003 US Heart Association Convention Highlights: LIFE Study Included in Examination of Influential Hypertension Trials." Philippine Star 2003.
MLA引文Katigbak, Antonio F. "2003 US Heart Association Convention Highlights: LIFE Study Included in Examination of Influential Hypertension Trials." Philippine Star, 2003.
警告：这些引文格式不一定是100％准确.