1. Roik V. Old age. An attempt of an interdisciplinary approach. Chelovek i trud. 2006;9:53-55. (In Russ.)
2. Frailty in older adults: insights and interventions.
3. Starcheskaya asteniya. Klinicheskie rekomendatsii. Rossijskaya assotsiatsiya gerontologov i geriatrov; 2018. Accessed April 20, 2020. (In Russ.) https://yakmed.ru/wp-content/uploads/2018/07/Asteniya_recomend.pdf
4. Tkacheva ON, Runikhina NK, Ostapenko VS, Sharashkina NV, Mkhitaryan EA, Onuchina YuS, Lysenko SN. Validation of the senile asthenia syndrome questionnaire in outpatient practice. Uspekhi gerontologii. 2017;30(2):236-242. (In Russ.)
5. Runikhina NK, Ostapenko VS, Sharashkina NV, Mkhitaryan EA, Kashtanova DA. Metodicheskie rekomendatsii po vedeniyu patsientov so starcheskoj asteniej dlya vrachej pervichnogo zvena zdravookhraneniya. 2016. Accessed April 20, 2020. (In Russ.) https://webmed.irkutsk.ru/doc/pdf/asten.pdf