Diagnosaurus is a differential diagnosis tool from McGraw-Hill's Access Medicine. It is searchable alphabetically, by symptom, disease, and organ system. It is also available as a free mobile app through TTUHSC libraries at www.ttuhsc.edu/libraries under the Mobile Resources icon.
Amarillo Reference: 806-414-9964
Lubbock Reference: 806-743-2200; ask for a reference librarian
Odessa/Permian Reference; 432-703-5030