title: Reply: To PMID 23933344.
authors.affiliation: Hebei Xinglong Institute of Pharmacological and Medical Science, 31, Southwest Second Loop Road, Shijiazhuang 050000, China. Electronic address: xinglongtong@hotmail.com.
authors.forename: Xinglong
authors.initials: X
authors.lastname: Tong
mesh_terms: D000653:Amniotic Fluid / Q000502:physiology*; D047108:Embryonic Development / Q000502:physiology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D015398:Signal Transduction / Q000502:physiology*; D013234:Stem Cells / Q000166:cytology*