1. Respiracion del feto: tésis inaugural Author(s): Martinez Ancira, José, author Publication: México : Imprenta de Francisco Diaz de Leon, 1877 Subject(s): Respiratory Physiological PhenomenaFetus -- physiology
2. A monograph on the foetal circulation Author(s): Peaslee, E. R. (Edmund Randolph), 1814-1878 author Publication: New York : Baker, Godwin & Co., book and job printers, 1854 Subject(s): Blood CirculationFetus -- physiology
