Katigbak, A. F. (2003). 2003 US Heart Association Convention highlights: LIFE study included in examination of influential hypertension trials. Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKatigbak, Antonio F. "2003 US Heart Association Convention Highlights: LIFE Study Included in Examination of Influential Hypertension Trials." Philippine Star 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKatigbak, Antonio F. "2003 US Heart Association Convention Highlights: LIFE Study Included in Examination of Influential Hypertension Trials." Philippine Star, 2003.
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