Guide to Reference Books (Balay): EH72
Online Database (Free)
http://igm.nlm.nih.gov/
Online version now known as AIDSLINE and is avialable through Internet Grateful Med.

Guide to Reference Books (Balay): EH71
Penrose Docs Stacks
HE 20.3615/3: 
1988- ?

Guide to Reference Books (Balay):
Penrose Docs Stacks
HE 20.3614/6:1987-2
1986-1987