Bergholz, R., Dutescu, R. M., Steinhagen-Thiessen, E., & Rosada, A. (2019). Ophthalmologic
health status of an aging population: Data from the Berlin Aging Study II (BASE-II). Graefe's Archive
for Clinical and Experimental Ophthalmology, 257, 1981-1988. doi:10.1007/s00417-019-04386-z.