KAZAN, TATARSTAN / RÚSSIA - 22 DE AGOSTO DE 2017: Assistente de laboratório feminina concentrada especializada em close-up segura tubo e olha para gotas de óleo cru em amostra de água em 22 de agosto em Kazan - Banco de filmagens e vídeos

Dermatologist tunes a dermatoscope. Beautiful girl in white medical dressing gown with dermatoscope.

Dermatologist tunes a dermatoscope. Beautiful girl in white medical dressing gown with dermatoscope.

A woman is preparing a syringe for injection

KAZAN, TATARSTAN/RUSSIA - AUGUST 22 2017: Closeup happy man lab assistant in protective glasses looks at bulb with black raw oil in modern test laboratory on August 22 in Kazan

KAZAN, TATARSTAN/RUSSIA - AUGUST 22 2017: Man in grey Tatneft coat pours crude oil into small bulb and looks at black liquid with happy smile on August 22 in Kazan

KAZAN, TATARSTAN/RUSSIA - AUGUST 22 2017: Closeup woman scientist face in glasses and on foreground hands hold bulbs with clear slime on August 22 in Kazan

KAZAN, TATARSTAN RUSSIA - JUNE 28 2018: Slow motion closeup hockey attacker in helmet with protective shielding follows game sitting on bench on June 28 in Kazan

KAZAN, TATARSTAN RUSSIA - APRIL 4 2018: Close view from behind lab glassware pretty brunette girl in azure robe operates with chemical samples on April 4 in Kazan

KAZAN, TATARSTAN/RUSSIA - AUGUST 22 2017: Closeup young dark haired woman lab assistant holds small bulb with raw oil drops in clear water in laboratory on August 22 in Kazan