Name Info Provider Link
subscription/membership/fee required HighWire https://www.bmj.com/lookup/pmidlookup?view=long&pmid=8044094
Down Syndrome free resource MedlinePlus Health Information https://medlineplus.gov/downsyndrome.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=8044094.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/8044094/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/8044094