syndactyly type 1 zygodactyly type 3 https://www.malacards.org/card/zygodactyly_type_3 syndactyly type 1, Montagu type MONDO:0017544 Zygodactyly, Montagu type icd11.foundation:1831534806 SD1, Montagu type UMLS:C5679983 SD1c MEDGEN:1843229 GARD:0021215 Orphanet:295191 syndactyly type 1c