Dr. E. Marshall Johnson is Professor Emeritus of Anatomy and Developmental Biology at Thomas Jefferson University, Philadelphia, Pennsylvania, USA. There, for 22 years he was Professor of Anatomy, the Chairman of the Department of Anatomy, and the Director of the Daniel Baugh Institute. He was also the President of the Teratology Society. He has authored more than 200 publications. In 1981, during the Seventh Medical Conference in Dammam, Saudi Arabia, Professor Johnson said in the presentation of his resea
Hide player controls
Hide resume playing