OMIM Phenotype&GeneSymbol  

  Chapter.15   Pregnancy, childbirth and the puerperium (O00-O99)
  O30-O48   Maternal care related to the fetus and amniotic cavity and possible delivery problems
    O30   Multiple gestation ( Search )
    • O300   Twin pregnancy ( Search )
    • O301   Triplet pregnancy ( Search )
    • O302   Quadruplet pregnancy ( Search )
    • O308   Other multiple gestation ( Search )
    • O309   "Multiple gestation, unspecified" ( Search )
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