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Timing and mode of delivery in twins : the ongoing controversy

Tese de doutoramento, Medicina (Ginecologia e Obstetrícia), Universidade de Lisboa, Faculdade de Medicina, 2014 ; Twins occur when more than one offspring is produced in the same pregnancy. They can result from one or several zygotes – Monozygotic (MZ) and Dizygotic (DZ) twins. DZ twins are always dichorionics (DC) with as many placentas and amniotic sacs as the number of fetuses. MZ twins can also be dichorio...