@article{hayes1993-8493063, author = {Hayes, A. and Batshaw, M. L.}, title = {{Down syndrome}}, journal = {Pediatric clinics of North America}, year = {1993}, doi = {10.1016/s0031-3955(16)38548-0}, pmid = {8493063}, url = {https://doi.org/10.1016/s0031-3955(16)38548-0} }