Close-up of needle in haystack

Close-up of barometer

Close-up of person's hands inserting needle on patient's arm

Close-up of fluorescent light

Close-up of light bulb

Close-up of person's hand inserting acupuncture needle on another person's skin

Close-up of nut and bolt

Close-up of syringe with blood sample

Copper pipes with threads

Bicycle pump gauge, close up.

Close-up of stitches on a human heart

appearance, artistic, art, abstract

Cool young woman with man in background

Child's wrist and hand with blood supply visible to show placement of butterfly needle in radial arterial puncture; (top) left adult hand locates vessel in child's wrist, right hand pinches "butterfly" and inserts needle; (bottom) close-up of butterfly n

business man, illustrated, creation, operating, money, art

A woman hand sewing

DNA molecule, artwork

Hourglass inside syringe, artwork

DNA molecule, artwork

DNA molecule, artwork

DNA molecule, artwork

Close-up of needle and spools of thread