close up portrait of smiling handsome african man doctor, standing in front of ultrasound and lithotripter machines and

renal nephrolithiasis medicine medical lithotripter hospital healthcare fluoroscopy extracorporeal shockwave disease part outpatient technology treatment calculus urology xray nephrology machine lithotripsy kidney eswl stones surgery ultrasonic room specialist noninvasive clinic nobody modern expensive diagnosis device advanced closeup detail clinical fluoroscopic equipment care doctor man male african tablet ultrasound