International Publisher of Science, Technology and Medicine


John Pierce



 John Pierce is working in the Neurosurgery department in Perelman School of Medicine affiliated to University of Pennsylvania, USA. He is the honorary reviewer for Journal of Spine and Neurosurgery. His research interest lie in Neurology.

Research Interest

 neurology, neruosurgery, spine, brain injury

izmit escort sex geschichten escort bayan porno sikis adult porno pornolar