Histo/Cell bio and physio

Histo- HY histo is a great book. It's actually not just histo, but some path, a little pharm, and a little mol. bio. It's an awesome book that often goes unnoticed due to it's title "histology." (a low-yield subject on Step 1)

Cell/Mol.biol- HY Mol./Cell bio. According to previous test takers, there are more and more Mol. Bio questions showing up on Step 1. It seems that pure biochem questions are being phased out into more Mol. Bio-type questions. Use this book, please!

Physio- BRS physio by Dr.Constanzo (my physio prof. in grad school). Probably the best physio review book out in the market. It does tend to get a little too detailed for USMLE prep, but it's still the gold standard for physio.

Hope that helps. G'luck.