Malformations in chicken embryos in the Northeast.
In Deborah Barnes' article "Joint Soviet-U.S. attack on heart muscle dogma" (Research News, 14 Oct., page 193), credit for a photograph was inadvertently omitted. John Oberpriller of the University of North Dakota graciously supplied the photograph of a newt ventricular myocyte dividing in culture.
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D000818:Animals; D002642:Chick Embryo / Q000033:anatomy & histology*; D000013:Congenital Abnormalities / Q000662:veterinary*; D014481:United States