Oral Contraceptives & Cancer Risk: Questions & Answers (2018). National Cancer Institute Member Services.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOral Contraceptives & Cancer Risk: Questions & Answers (2018). National Cancer Institute Member Services.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOral Contraceptives & Cancer Risk: Questions & Answers (2018). National Cancer Institute Member Services.
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