AUTHOR=Gajewska Ewa , Fliciński Jędrzej , Sobieska Magdalena , Michalska Joanna , Żarowski Marcin , Steinborn Barbara TITLE=Case Report: Atypical motor development in a patient with the mosaic form of Down syndrome and spinal muscular atrophy type 2- long-term observation JOURNAL=Frontiers in Genetics VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2024.1483903 DOI=10.3389/fgene.2024.1483903 ISSN=1664-8021