A man selects a paint sample in a big box hardware store.
Laboratory technician arranging blood samples in a rack 4k
1918 Influenza doctor and modern covid19 doctor looks at blood samples
Seamstress or designer selects fabric samples for sewing curtains. Work table of a tailor. Clothing and tailoring concept
Lab technician assistant in ppe suit analyzing blood sample in test tube at laboratory. Doctor working with various bacteria, tissue, pharmaceutical research for antibiotics against covid19.