Timeline (IMAGE) IOS Press Caption Timeline of some of the key events establishing anticipation as a genuine biological phenomenon and somatic expansion as contributing toward Huntington's disease pathology. Credit : Darren G. Monckton in "The Contribution of Somatic Expansion of the CAG Repeat to Symptomatic Development in Huntington's Disease: A Historical Perspective," Journal of Huntington's Disease 10:1 (February 2021). Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.