1. INSTAT, Institute of Statistics, Themes, Demography and Social Indicators, Population, Population of Albania on 1st January 2023. Accessed August 10, 2023.https://www.instat.gov.al/en/themes/demography-and-social-indicators/population/publication/2023/population-of-albania-on-1st-january-2023/.
2. Jorgoni E, Musabelliu E. European Commission. European Social Policy Network (ESPN) Long-term care for older people Albania. Accessed August 10, 2023.https://ec.europa.eu/social/BlobServlet?docId=24029&langId=en.
3. Prognostic significance of postoperative in-hospital complications in elderly patients. I. Long-term survival;Manku;Anesth Analg,2003
4. Estimate of the global volume of surgery in 2012: an assessment supporting improved health outcomes;Weiser;Lancet,2015
5. Perioperative care of the elderly patient;Ergina;World J Surg,1993