title: The amount of penicillin needed to prevent mother-to-child transmission of syphilis.
authors: Department of Reproductive Health, World Health Organization, avenue Appia 20, 1211 Geneva 27, Switzerland .
authors: Melanie M
authors: MM
authors: Taylor
authors: Centre for Tuberculosis Control, Shandong Provincial Chest Hospital, Jinan, China .
authors: Xiulei
authors: X
authors: Zhang
authors: Department of Reproductive Health, World Health Organization, avenue Appia 20, 1211 Geneva 27, Switzerland .
authors: Stephen
authors: S
authors: Nurse-Findlay
authors: Department of Essential Medicines and Health Products, World Health Organization, Geneva, Switzerland .
authors: Lisa
authors: L
authors: Hedman
authors: Department of Reproductive Health, World Health Organization, avenue Appia 20, 1211 Geneva 27, Switzerland .
authors: James
authors: J
authors: Kiarie