A method for achieving erection is direct injection of papaverine or other vasodilator (a substance that dilates blood vessels and increases blood flow) into the penis. Men with good hand function can inject themselves, or a partner can perform the injection with minimal training by the urologist. This method is generally quite safe. Possible side [...]

Paget’s disease of the bone is a rather unusual condition in which calcium disappears from the structure. The exact cause of the condition is not known. The parathyroid glands have been studied, but cases of Paget’s disease have been found in which the parathyroid glands were entirely normal. Questions have also been raised as to [...]