If you find the material on this website useful, you will find that the two books
for PACES and KEYS to SUCCESS in Medicine
complement the material on these sites
and will enhance your studying and revision
A regional audit showed that
62 women who with deep vein thrombosis whilst in hospital a total of 45 women
had used oral contraception for varying periods during their lifetime. The
odds ratio can be best expressed as which of the following?