HO, L.- fong, WONG, A. O., LAI, O.- ki, YIP, W.- yan, LEUNG, P.- han, & LEE, S.- kwan. (2023). Change in mode of feeding after ultrasonic therapy for lactating mothers with blocked mammary ducts. Hong Kong Journal of Gynaecology, Obstetrics and Midwifery, 23(1). https://doi.org/10.12809/hkjgom.23.1.07