Useful Resources

Hardin MD: Limited atlas of mostly dermatologic conditions.

UCSF Hospitalist Handbook: quick reference, ward medicine

Likelihood Ratio Table: University of Toronto: continually updated list of likelihood ratios.

Tom Evans' ECG Cribsheets

Orphanet: Compendium of rare diseases. Search by sign or gene.

A Practical Guide to Clinical Medicine: UCSD: perfect resource for medical students on physical exam technique. Lots of pictures. 

Chorus: Collaborative Hypertext of Radiology. An exhaustive database of findings in radiology, eponyms, and rare signs. 

Number Needed to Treat Tables: University of Toronto: use the drop-down list under Examples to see a table of NNT by system.

Number Needed to Treat Table: Bandolier, Oxford: not as up-to-date as the University of Toronto