KAZAN, TATARSTAN / RUSSIA - 14 MAGGIO 2020: Operaio in abbigliamento protettivo preme i tasti sul pannello di controllo e controlli dei dipendenti maschere usa e getta in officina di produzione il 14 maggio a Kazan - Filmati e video stock

Young dentist and his assistant treat teeth middle-aged man HD

Nurses open the package with sterile gloves for doctor before surgery in hospital. Concept of phlebology, sclerotherapy

A laboratory assistant in a medical suit and medical mask enters the room holding a box of test tubes in his hands,microbiology.

Close up of dentist leaning down toward patient in dentist office, Provo, Utah, United States,

KAZAN, TATARSTAN RUSSIA - AUGUST 24 2018: close view young worker in white mask and earphones looks at automated machines control panel on August 24 in Kazan

KAZAN, TATARSTAN/RUSSIA - MAY 14 2020: Handsome young guy in black shirt puts on light blue disposable mask in brightly lit workshop close low angle shot on May 14 in Kazan

KAZAN, TATARSTAN/RUSSIA - DECEMBER 20 2019: Concentrated worker in protective suit and mask in brightly lit workshop of modern solar panel production plant closeup on December 20 in Kazan