title: Knowledge about Sterile Water Injections for Pain Relief in Labor.
authors.affiliation: Medical Science, Medical Center, Shantou, China.
authors.forename: Sim Sai
authors.initials: SS
authors.lastname: Tin
authors.affiliation: Tropical Medicine, Visiting professor, Hainan Medical University, Haikou, China.
authors.forename: Viroj
authors.initials: V
authors.lastname: Wiwanitkit
mesh_terms: D006801:Humans; D010146:Pain; D059408:Pain Management; D010147:Pain Measurement; D014867:Water
chemical_list: D014867:Water