As a researcher, you may sometime need to write reviews of papers submitted to conferences or journals for presentation/publication. Below is an article giving guidelines as how best to peer review a scientific paper.
http://advan.physiology.org/cgi/content/full/27/2/47#T1
http://advan.physiology.org/cgi/reprint/27/2/47
http://advan.physiology.org/cgi/content/full/27/2/47#T1
http://advan.physiology.org/cgi/reprint/27/2/47
