O'Hara, S., Zelesco, M., & Sun, Z. (2015). A comparison of ultrasonic measurement techniques for the maternal cervix in the second trimester.
Chicago Style (17th ed.) CitationO'Hara, Sandra, M. Zelesco, and Zhonghua Sun. A Comparison of Ultrasonic Measurement Techniques for the Maternal Cervix in the Second Trimester. 2015.
MLA (9th ed.) CitationO'Hara, Sandra, et al. A Comparison of Ultrasonic Measurement Techniques for the Maternal Cervix in the Second Trimester. 2015.
Warning: These citations may not always be 100% accurate.