1. The value of the bluish coloration of the vaginal entrance as a sign of pregnancy Author(s): Chadwick, James R. (James Read), 1844-1905 author Publication: [Boston?] : [publisher not identified], [1886?] Subject(s): PregnancySigns and SymptomsSkin PigmentationVagina -- blood supply
2. An analysis of one hundred and forty-one cases of pregnancy, with reference to the blue color of the vagina Author(s): Farlow, John Woodford, 1853-1937, author Publication: Boston : Cupples and Hurd, 1887 Subject(s): Pregnancy TestsVagina -- blood supplyColor
