Médico sosteniendo tubo de ensayo con muestra para análisis en laboratorio, primer plano - Foto e imagen de stock

Lab worker taking test tube watching changes in substance, scientific experiment

Scientist holding test tube with sample, closeup. Laboratory analysis

Laboratory assistant dripping urine sample for analysis from pipette into test tube, closeup

Cosmetics production, lab assistant studying test tube with liquid sample

Doctor holding test tube with sample for analysis in laboratory, closeup

Laboratory worker taking test tube with liquid for examination, cosmetology

Doctor holding test tube with sample for analysis in laboratory, closeup

Doctor pouring blue liquid into beaker from Erlenmeyer flask at grey table, closeup. Laboratory analysis

Scientist holding test tubes with liquid for analysis in laboratory. Space for text

Scientist dripping sample into test tube in laboratory, closeup. Medical research

Scientist holding test tube with light blue liquid in laboratory, closeup

Scientist taking test tube with light blue liquid in laboratory, closeup

Scientist taking test tube with light blue liquid in laboratory, closeup

Doctor holding test tubes with samples for analysis in laboratory, closeup