Gordon, The Rise and Fall of American Growth, 629.

Anne Case and Angus Deaton, "Rising Morbidity and Mortality in Mid-Life Among White Non-Hispanic Americans in the 21st Century", Proceedings of the National Academy of the United States 112, no. 49; Anne Case and Angus Deaton, "Mortality and Morbidity in the 21st Century", Brookings Institution, Brookings Paper on Economic Activity, March 23, 2017.