Venous Valves - Gottlob, R. a May, R.

Venous valves rank among the smallest and most delicate organs of the human and animal bodies - so why devote an entire book to them? In the pathogenesis of a number of widespread diseases, such as varicose veins or the post-thrombotic syndrome, venous valves are involved as the underlying cause or at least a factor contributory to the symptoms.