CHUNG, V. W., CHIU, J. W., CHAN, D. L. and TO, W. W. (2017) “Companionship during Labour Promotes Vaginal Delivery and Enhances Maternal Satisfaction”, Hong Kong Journal of Gynaecology, Obstetrics and Midwifery, 17(1). doi: 10.12809/hkjgom.17.1.217.