Explore research monographs, classroom texts, and professional development titles.
Discover the real world of business for best practices and professional success.
Develop in-depth understanding of key business theories and how to apply them.
Discover trustworthy and timely resources in American government, politics, history, public policy and current affairs.
Start your research with authoritative encyclopedias and handbooks in the social and behavioral sciences.
Develop the vital skills necessary to succeed in your academic and professional careers.
Watch cutting-edge streaming video that supports teaching, learning, and research at all levels.
Down syndrome, also called Down's syndrome or trisomy 21, is a congenital disorder caused by the presence of all or part of an extra 21st chromosome. This gives people with Down syndrome 47 chromosomes, rather than 46. It acquired the name ...
Have you created a personal profile? Login or create a profile so that
you can save clips, playlists and searches
We found other relevant content for you on other SAGE platforms.
Navigating away from this page will delete your results
Please save your results to "My Self-Assessments" in your profile before navigating away from this page.
Sign in to my profile
Sign up for a free trial and experience all SAGE Knowledge has to offer.
You must have a valid academic email address to sign up.
Get off-campus access