Pedro Ruiz, M.D., President of WADD introduced the Tenth Edition of "Kaplan & Sadock's Comprehensive Textbook of Psychiatry", authored by Benjamin James Sadock, M.D. , Virginia Alcott Sadock, M.D. and Pedro Ruiz, M.D.; published Wolters Kluwer in May 2017.
In the picture, from left to right, Virginia A. Sadock, M.D., Benjamin J. Sadock, M.D., Nestor Szerman, M.D. and Pedro Ruiz, M.D.