Protacio, A. L. (1997). Drugs that can be taken during pregnancy. IN Doctor's corner [column]. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रProtacio, Antonio L. "Drugs That Can Be Taken During Pregnancy. IN Doctor's Corner [column]." Philippine Daily Inquirer 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रProtacio, Antonio L. "Drugs That Can Be Taken During Pregnancy. IN Doctor's Corner [column]." Philippine Daily Inquirer, 1997.
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