The kidney dialysis machine was invented by

The Jaipur foot is made up of solid rubber and which of the following materials?

The heart of a healthy man beats normally per minute:

In the case of an artificial pacemaker,the electrode is inserted into:

An $X-ray$ of the lower abdomen shows a shadow in the region of the ureter suspected to be an ureteric calculus. $A$ possible clinical symptom would be

Which of these is based on magnetic resonance?