... three of these ethnic groups. APOEis known to have many biological effects. It is conceivablethat the role of APOE and its isoforms in AD may bedistinct from its activity in the maintenance of ... York, USAcDepartment of Pathology, School of Public Health, Columbia University College of Physicians and Surgeons, New York, New York, USAdDepartment of Psychiatry, School of Public Health, Columbia ... York, USAfDivision of Epidemiology, School of Public Health, Columbia University College of Physicians and Surgeons, New York, New York, USAgDivision of Biostatistics, School of Public Health,...