ALL KEYWORDSRh Alloimmunization, Rh IncompatibilityRelated SpecialistsMary Jane HoganMD, MPHMatthew GrossmanMDAlexis Luz RodriguezMDRelated Clinical TrialsA prospective, natural history study to assess the occurrence of HPA-1a alloimmunization in women identified at higherrisk for Fetal and Neonatal Alloimmune Thrombocytopenia(FNAIT)Gender:Female onlyAge:18 years and older