Parkinson's disease is an illness that affects the part of your brain that controls how you move your body. Some people with Parkinson’s first notice weakness, difficulty walking, and stiff muscles.

Gallbladder disease includes inflammation, infection, stones or blockage of the gallbladder. The gallbladder is a sac located under the liver. It stores and concentrates bile produced in the liver.

12 Department of Hygiene and Epidemiology, School of Medicine, University of Ioannina, Ioannina, Greece 13 Department of Medicine, Tufts University School of Medicine, Boston, USA 14 Harvard School of ...