1. Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
2. National Institute of Gerontology and Geriatrics “Ana Aslan”, 011241 Bucharest, Romania
3. National Institute for Research and Development in Informatics, 011455 Bucharest, Romania
4. Faculty of Automatic Control and Computers, National University of Science and Technology POLITEHNICA Bucharest, 060042 Bucharest, Romania