⚕️

https://www.menshealth.com/health/a19533106/why-doctors-hit-your-knee-with-rubber-hammer/

https://www.storyblocks.com/video/stock/doctor-the-neurologist-examines-the-patient-taps-with-a-hammer-on-the-knee-frontal-view-r7nogmdlfjdbkhq6g