Biochemistry
Harper's Illustrated Biochemistry by Cell and Molecular Biology
Histology and Cell Biology: an Introduction to Pathology by
Embryology
Genetics
Thompson & Thompson Genetics in Medicine by Histology
Junqueira's Basic Histology: Text and Atlas by 
Wheater's Functional Histology by Internal Medicine
[readings for Pharmacology & Aging]
Harrison's Principles of Internal Medicine by Physiology
Ganong's Review of Medical Physiology by Pharmacology
[enrichment sources - no assigned readings]
Basic and Clinical Pharmacology by 
Goodman and Gilman's the Pharmacological Basis of Therapeutics by
