Little boy doctor hits patient knee too hard. Young boy playing and learn as professional doctor at clinic curing patient, checking reflexes with reflex hammer in slow motion. - Stock Video Footage -
So called "free thinkers" when the doctor hits their knee with a little hammer - iFunny Brazil
Surgeon video using a HAMMER to get metal rod out of patients shin bone | Daily Mail Online
154 Knee Hammer Stock Video Footage - 4K and HD Video Clips | Shutterstock