The caliper is used to measure body fat in a method called "skin folding". The "skin fold" method measures your body fat percentage by pinching your fat with your fingers, and then measuring the thickness with a body fat caliper. The reading is given in millimeters, which makes you compare a graph with age and gender to arrive at your body fat percentage.
Reports suggested that he Liver Cancer, which originated as Lung Cancer and progressed into his liver. These two cancers are some of the most virulent, and are very difficult to recover from.