disease arises from structure disease arises from alteration in structure 20p12.3 (Human) syndrome caused by partial chromosomal deletion 20p12.3 microdeletion syndrome https://github.com/monarch-initiative/mondo/issues/3664 https://rarediseases.info.nih.gov/diseases/12492/20p123-microdeletion-syndrome https://www.malacards.org/card/20p123_microdeletion_syndrome MEDGEN:930208 Del(20)(p12.3) UMLS:C4304539 MONDO:0016841 SCTID:719650004 20p12.3 microdeletion syndrome is a recently described syndrome characterized by Wolff-Parkinson-White syndrome, variable developmental delay and facial dysmorphism. Orphanet:261295 GARD:0012492 monosomy 20p12.3 partial monosomy of the short arm of chromosome 20