Medline is one of the key databases, and it is available in two ways:
TechCat includes both Medline and PubMed Central, and also offers citations from 70 different databases with direct linking to full text provided from many more resources.
PubMeds the searchable version of Medline and includes PubMed Central, which is made up of selected full text. PubMed has some additional search types and limiters to provide more in-depth searching.
The A-Z of Medical Writing by 
Manual of Style by 
Health Professionals Style Manual by
"This [book] is a guide to improving writing, with a major focus on demonstrating proper English grammar and compositionÖ.This is a must have reference to be kept at the writer's side." Score:100, 5 stars --Doody's Now you can learn and apply the basic principles of writing style, composition, grammar, word usage, and misusage, to the field of health care. With the Health Professionals Style Manual you will learn to improve your message and communicate more effectively. With up-to-date resources and references, these are just some of the rules and tools you will learn to use in your own writing: Style and Substance Art of Effective Writing Tips and Pitfalls Redundancies, Euphemisms, and Cliches Computers and the Internet Common Abbreviations and Acronyms Commonly Misspelled Words Using Prefixes and Suffixes Common Proofreader's Marks Electronic Resources If you're a researcher, student or professional specializing in the health related professions, this new, handy guide will help you improve your writing style and hone your grammar and word usage skills.