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Article History

Received: 12 March 2019

Accepted: 3 August 2020

First Online: 20 August 2020

Ethics approval and consent to participate

: This study was approved by the following Ethics Committees: Noble Hospital Institutional Ethics Committee, Noble Hospital (India), Ethics Committee, HRMC Cardiovascular Sciences & Research, S. P Medical College & A. G Hospitals (India), Institutional Ethics Committee, King George’s Medical College (India), Institutional Ethics Committee, City Cancer Center D.No.33–25-33 (India), Sahyadri Hospitals Ltd. Ethics Committee, Sahyadri Clinical Research & Development centre (India), Amravati at Sujan Surgical Cancer Hospital and Amravati Cancer Foundation (India), HCG Central Ethics Committee (India), Manipal University Ethics Committee (India), Sri Venkateshwara Hospital Ethics Committee (India), Institute Ethics Committee, AIIMS Bhubaneswar (India), Institutional Ethics Committee, Meenakshi Mission Hospital & Research Centre (India), Srinivasam Cancer Care Multispeciality Hospitals Institutional Ethics Committee (India), Institutional Ethics Committee, BGS Global Hospitals (India), Institutional Ethics Committee, RG Kar Medical College (India), Institutional Ethics Committee, Sapthagiri Institute of Medical Sciences & Research Centre (India), Ethics Committee of Arkhangelsk Regional Clinical Cancer Dispensary (Russia), Local Ethics Committee of State Healthcare Institution Samara Regional Clinical Cancer Dispensary (Russia), Local Ethics Committee of State Budgetary Healthcare Institution of Stavropol Region Stavropol Regional Clinical Cancer Dispensary (Russia), Local Ethics Committee of OOO Arte Med Assistans (Russia), Ethics Committee of Federal State Budgetary Military Educational Institution of Higher Professional Education S.M. Kirov Military Medical Academy of the Ministry of Defense of the Russian Federation (Russia), Local Ethics Committee of Federal State Budgetary Institution N.N. Petrov Research Institute of Oncology of the Ministry of Healthcare of the Russian Federation (Russia), Ethics Committee of Moscow State Healthcare Institution Moscow City Oncology Hospital No. 62 of Healthcare Department of the City of Moscow (Russia), Ethics Committee of State Budgetary Healthcare Institution “Volgograd Regional Clinical Cancer Dispensary No 1” (Russia), Ethics Committee of Federal State Budgetary Institution N.N. Blokhin Russian Cancer Research Center of the Russian Academy of Medical Sciences (Russia), Ethics Committee of State Budgetary Healthcare Institution Chelyabinsk Regional Clinical Cancer Dispensary (Russia), Ethics Committee of State Budgetary Healthcare Institution Perm Regional Cancer Dispensary (Russia), Local Independent Ethics Committee of State Budgetary Healthcare Institution Chelyabinsk Regional Clinical Hospital. 70 (Russia), Local Ethics Committee of Regional Budgetary Healthcare Institution Kursk Regional Clinical Cancer Dispensary (Russia), Local Ethics Committee of State Budgetary Healthcare Institution of Stavropol Region Pyatigorsk Cancer Dispensary (Russia), Ethics Committee of State Budgetary Healthcare Institution Clinical Cancer Dispensary No. 1″ of the Ministry of Healthcare of Krasnodar Territory (Russia), Local Ethics Committee of Regional Budgetary Healthcare Institution Kursk Regional Clinical Cancer Dispensary (Russia), Ethics Committee of State Autonomous Healthcare Institution Republican Clinical Cancer Dispensary of the Ministry of Healthcare of the Republic of Tatarstan (Russia), Local Ethics Committee of Federal State Budgetary Educational Institution of Higher Professional Education N.P. Ogarev Mordovian State University (Russia), Local Ethics Committee of State Budgetary Healthcare Institution Orenburg Regional Clinical Cancer Dispensary (Russia), Local Ethics Committee of State Budgetary Healthcare Institution Saint Petersburg Clinical Research and Applied Center for Specialized Medical Care (Russia), Ethics Committee of Healthcare Institution Brest Regional Clinical Cancer Dispensary (Belarus), Institutional Ethics Committee King George Hospital (India), Institutional Ethics Committee King George’s Medical University (India), Central Ethics Committee, HCG – Bangalore Institute of Oncology (India), Narayana Hrudayalaya Medical Ethics Committee (India), Institutional Ethics Committee Sri Ramachandra University (India), Institutional Ethics Committee Basavatarakam Indo-American Cancer Hospital & Research Institute (India), Noble Hospital Institutional Ethics Committee (India), Ethics Committee of Vinnytsa Regional Clinical Cancer Dispensary (Ukraine), Ethics Committee of Zakarpattia Regional Clinical Cancer Dispensary (Ukraine), Ethics Committee of Municipal Treatment and Preventive Facility City Cancer Dispensary (Ukraine), Ethics Committee of Municipal Institution Krivoy Rog Cancer Dispensary of Dnepropetrovsk Regional Council (Ukraine), Ethics Committee of Municipal Healthcare Institution Kharkov Regional Clinical Cancer Center (Ukraine).All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written informed consent was obtained from all individual participants included in the study.

: Not applicable.

: The authors declare that they have no competing interests.