About Hortensia Reyes Morales Hortensia Reyes Morales is the Executive Director of the Center for Health Systems Research at the National Institute of Public Health. Books by Hortensia Reyes Morales Health Systems in Transition Mexico by (author) Miguel González Block, Hortensia Reyes Morales, Lucero Cahuana Hurtado, Alejandra Balandrán & Edna Méndez