Thank you so much to all of you who take the time to reply.  Your
suggestions are greatly appreciated.
Here is the summary.
Some suggest search engines such as:

Google Print Search Inside the Book

Comparison handout:

Others suggest databases such as:

MD consult, Stat ref, Ovid, EBSCO, NCBI Bookshelf, National Academy Press

Thanks again for your assistance.

Marie I. Elias, MLS, AHIP
Medical Librarian
The Medical Letter Inc, Library
1000 Main Street
New Rochelle, NY 10801
Phone:  914-235-0500, Ext. 307
Fax:      914-235-5079
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