Luthardt, Frederick William2023-10-032023-10-031971https://hdl.handle.net/1805/36036This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).en-USChromosome AbnormalitiesDown SyndromeThesis