Hombre barbudo guapo científico profesional sénior sentado en la mesa y trabajando en el portátil, tubos de ensayo, frascos de vidrio y microscopio en la mesa en el laboratorio moderno. Medicina, química, biología . - Foto e imágenes de stock

Mature Caucasian male doctor researcher carrying out scientific research in a lab, purifying red liquid from test tube into glass flask, using a microscope, laptop, sitting at the table.

Senior man, research scientist writes notes, lab observations. Male researcher carrying out scientific research, sitting at the table, holding test tube, using laptop and microscope, in a lab.

Senior doctor man scientist virologist researcher, analyzing chemistry flask with new substance, vaccine, evaluating results. Professor discovered a new formula for treating disease in laboratory

Concentrated man scientist examines the chemical liquid in the flask, sitting at the tbale in lab, satisfied by the result of the experiment. The scientist evaluates the chemical reaction occurred

Male doctor chemist examining drug or vaccine samples at lab, sitting at the table, while holding glass flask and making notes. Medical science research, medicines development, genetics concept

Smiling Caucasian mature man scientist or doctor testing new drugs to prevent and destroy new strains of the virus or bacteria, holds glass flask. Pharmaceutical research and medicine concept

Caucasian concentrated male scientist doctor working in lab, doing research and making experiment, holding test tube with new vaccine sample or drug, looking at tube. Virology, biology, medicine.

A handsome african man technician, doctor, microbiologist, in the lab looking through microscope, working on medical research, sitting at the table with modern glass equipment and laptop

Discovering of new medicine, vaccine. Concentrated young female scientist, doctor, biotechnologist, holding test tube and looking at it while sitting at her working place in modern lab. Focus on hand.

Grey haired caucasian male doctor in eyewear and white lab coat sitting at office desk and typing on wireless laptop, looking at camera. Technology and medicine concept.

Competent medical worker in headset explaining patient how to measuring saturation with pulse oximeter during video call on laptop. Concept of technology, online consultation and medicine.

Shot of a Korean young man scientist looking through the lens of a microscope while sitting at the table with laptop, test tubes and flasks. Science, biology, medicine concept.

Focus on back view of teaching model located in consulting room of private practice with adults talking in background. Experts using skeleton as representation of human anatomy for patient education.

Young woman doctor, biochemist, scientist looking through a microscope in a laboratory, making notes on the papers and laptop. Light laboratory room, human skeleton on the background.

Young Caucasian female doctor, chemist or scientist loads liquid sample into flask from test tube. Science and chemistry concept. Focus on the hands.

Grey haired caucasian doctor in eyewear and white lab coat sitting at office desk and typing on wireless laptop. Technology and medicine concept.