Any effort to describe principles of medicine is difficult because of the general language which is used, and the specificity of the situation which the reader often has in mind. Bear in mind, accordingly, that the area of medicine attempted to be covered by this site is impossible to describe accurately in a few webpages. You are being warned with all seriousness that what follows on these pages may not cover your own situation or be accurate for that matter. So, don't rely on this effort to summarize the science and art of medicine. You must obtain answers tailored to your own situation from an experienced doctor.This website should help you to raise appropriate questions for which your doctor can give you his opinion and advice on the correct answers. Also, crosscheck the contents with other information sources. Although every effort has been made to summarize the current scientific evidence accurately, the authors do not take responsibility for any errors or omissions.