APA

Widmer M., Piaggio G., Hofmeyr G. J., Carroli G., Coomarasamy A., Gallos I., Goudar S., Gülmezoglu A. M., Lin S. L., Lumbiganon P., Mugerwa K., Owa O., Qureshi Z. & Althabe F. (20200323). Maternal characteristics and causes associated with refractory postpartum haemorrhage after vaginal birth: a secondary analysis of the WHO CHAMPION trial data. : BJOG : an international journal of obstetrics and gynaecology.

Chicago

Widmer M, Piaggio G, Hofmeyr G J, Carroli G, Coomarasamy A, Gallos I, Goudar S, Gülmezoglu A M, Lin S L, Lumbiganon P, Mugerwa K, Owa O, Qureshi Z and Althabe F. 20200323. Maternal characteristics and causes associated with refractory postpartum haemorrhage after vaginal birth: a secondary analysis of the WHO CHAMPION trial data. : BJOG : an international journal of obstetrics and gynaecology.

Harvard

Widmer M., Piaggio G., Hofmeyr G. J., Carroli G., Coomarasamy A., Gallos I., Goudar S., Gülmezoglu A. M., Lin S. L., Lumbiganon P., Mugerwa K., Owa O., Qureshi Z. and Althabe F. (20200323). Maternal characteristics and causes associated with refractory postpartum haemorrhage after vaginal birth: a secondary analysis of the WHO CHAMPION trial data. : BJOG : an international journal of obstetrics and gynaecology.

MLA

Widmer M, Piaggio G, Hofmeyr G J, Carroli G, Coomarasamy A, Gallos I, Goudar S, Gülmezoglu A M, Lin S L, Lumbiganon P, Mugerwa K, Owa O, Qureshi Z and Althabe F. Maternal characteristics and causes associated with refractory postpartum haemorrhage after vaginal birth: a secondary analysis of the WHO CHAMPION trial data. : BJOG : an international journal of obstetrics and gynaecology. 20200323.