hereditary disease oculocerebral hypopigmentation syndrome of Preus https://www.malacards.org/card/oculocerebral_hypopigmentation_syndrome_of_preus GARD:0004034 OMIM:257790 oculocerebral hypopigmentation syndrome type Preus MONDO:0009766 MEDGEN:419131 MESH:C537866 Orphanet:2720 SCTID:716174001 oculocerebral hypopigmentation syndrome of Preus UMLS:C2931646