title: The primitive cardiac regions in the straight tube heart (Stage 9) and their anatomical expression in the mature heart: An experimental study in the chick embryo.
authors.affiliation: Laboratorio de Embriología Experimental, Hospital Infantil de México Federico Gómez, Dr. Márquez No. 162, Col. Doctores, Deleg. Cuauhtémoc, C.P. 06720, México, D.F.
authors.forename: M V
authors.initials: MV
authors.lastname: De La Cruz
authors.forename: C
authors.initials: C
authors.lastname: Sánchez-Gómez
authors.forename: M A
authors.initials: MA
authors.lastname: Palomino