HO, L. F.; LEE, I. L.; MA, G. G. A Pilot Study on the Use of Transcutaneous Electrical Nerve Stimulation Machine for First-stage Analgesia in a Teaching Hospital. Hong Kong Journal of Gynaecology, Obstetrics and Midwifery, [S. l.], v. 8, n. 1, 2023. DOI: 10.12809/hkjgom.8.1.79. Disponível em: https://hkjgom.org/home/article/view/79. Acesso em: 5 may. 2024.