1. Fifty years of evolution of the term Down's syndrome
M Luisa Rodríguez-Hernández, Eladio Montoya 
The Lancet 
Volume 378, Issue 9789, (July 2011)
DOI: /S (11)
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2. Figure
Evolution of the use of the terms “mongolism”, “Down's syndrome”, “trisomy 21”, and “Langdon Down's syndrome” in publication titles listed in PubMed (1961–2010)
The Lancet  , DOI: ( /S (11) )
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