3 Department of Geriatric Medicine, Division of Medicine, Chulalongkorn University, Bangkok, Thailand Correspondence to: Dr Rupert Bourne, Department of Epidemiology and International Eye Health, ...
a Department of Ophthalmology, University of Vienna, Austria, b Institute of Medical Statistics Dr Georg Rainer, Department of Ophthalmology, University of Vienna, AKH-Vienna, Waehringer Guertel 18–20 ...