Toxicity and safety of the combination of lenvatinib with pembrolizumab in patients with advanced renal cell cancer: The Russian phase IV observational study oleh Maria I. Volkova, Alexey S. Kalpinskiy, Olesya A. Goncharova, Konstantin V. Menshikov, Elena V. Karabina, Aleksand S. Dergunov, Natalya I. Polshina, Elena N. Alexandrova, Andrey A. Lebedinets, Alexey К. Panov, Alexander V. Sultanbaev, Evgeny A. Usynin, Mikhail V. Volkonskiy, Viktorya V. Mikhalyuk, Ruslan A. Zukov, Yulia V. Anzhiganova, Magomed A. Gusniev, Elena N. Igumnova, Svetlana V. Kuzmicheva, Ilya A. Pokataev, Anna S. Olshanskaya, Natalia I. Pervakova, Elvira L. Parsadanova, Tatyana A. Sannikova, Alexandr A. Bystrov, Daria M. Dubovichenko, Mukhitova R. Miliausha, Viacheslav A. Chubenko, Konstantin A. Shkret, Mariya N. Gorshenina, Mavzhuda К. Davlatova, Alina E. Kosareva, Olga A. Lutoshkina, Oxana A. Maslova, Maria V. Makhnutina, Anna V. Mishina, Makhabbat Zh. Murzalina, Oksana A. Podyacheva, Sergey A. Kalinin, Ovsep A. Mailyan, Alfiya R. Safarova, Ksenia O. Semenova, Mariya A. Strokova, Ekaterina Yu. Urashkina, Olesya S. Shmygina