White, ColinWyshak, Grace2015-07-021964White, Colin, and Grace Wyshak. 1964. “Inheritance in Human Dizygotic Twinning.” N Engl J Med 271 (19) (November 5): 1003–1005. doi:10.1056/nejm196411052711908.0028-4793http://nrs.harvard.edu/urn-3:HUL.InstRepos:16953388en-USInheritance in Human Dizygotic TwinningJournal Article2015-07-0210.1056/NEJM196411052711908