digeorge velocardiofacial syndromedigeorge syndrome characteristicsdigeorge syndrome immunodeficiencydigeorge syndrome pathophysiologydigeorge syndrome inheritancedigeorge syndrome diagnosisdigeorge syndrome featurespartial digeorge syndromedigeorge syndrome chromosomedigeorge syndrome prognosisfamous people with digeorge syndromedigeorge syndrome heart
