Template:Ref-Davis1927
From Embryology
Davis CL. Development of the human heart from its earliest appearance to the stage found in embryos of twenty paired somites. (1927) Carnegie Instn. Wash. Publ 380. 19: 245-284.
Davis CL. Development of the human heart from its earliest appearance to the stage found in embryos of twenty paired somites. (1927) Carnegie Instn. Wash. Publ 380. 19: 245-284.