Human Parasitology: With Notes on Bacteriology, Mycology, Laboratory Diagnosis, Hematology. E-book. Formato PDF Damaso Rivas   -  Forgotten Books, 2017  - 

A half century ago medicine was more an art than a science. The doors of American medical colleges stood wide Open to welcome all who came as students, and if they showed a desire to learn, possessed enough elementary education to enable them to read their text-books and write their examination papers, no questions were asked as to their acquaintance with the physical and biologic sciences.