Bagdonas A, Kairys A, Zamalijeva O. The Guidelines of Researches of Senility, Aging and Functioning of Old People: a Byopsychosocial Approach. STEPP [Internet]. 2017 Jul. 27 [cited 2024 May 2];15:80-102. Available from: https://www.journals.vu.lt/STEPP/article/view/10811