APA

Chan V. Y. T., Lau W., So M. K. P. & Leung W. (20190213). Measuring angle of progression by transperineal ultrasonography to predict successful instrumental and cesarean deliveries during prolonged second stage of labor. : International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.

Chicago

Chan Viola Y T, Lau Wai-Lam, So Mike K P and Leung Wing-Cheong. 20190213. Measuring angle of progression by transperineal ultrasonography to predict successful instrumental and cesarean deliveries during prolonged second stage of labor. : International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.

Harvard

Chan V. Y. T., Lau W., So M. K. P. and Leung W. (20190213). Measuring angle of progression by transperineal ultrasonography to predict successful instrumental and cesarean deliveries during prolonged second stage of labor. : International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.

MLA

Chan Viola Y T, Lau Wai-Lam, So Mike K P and Leung Wing-Cheong. Measuring angle of progression by transperineal ultrasonography to predict successful instrumental and cesarean deliveries during prolonged second stage of labor. : International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics. 20190213.