1. Abramowitz M, Davidson MW. 25 most common errors and suggested remedies. Microscopy resource center. Olympus America, Inc. Available at: http://www.olympusmicro.com/primer/photomicrography/faults.html. Accessed Aug 8, 2013.
2. Oral Surgery Oral Medicine Oral Pathology Oral Radiology Guide for Authors. Available at: http://www.elsevier.com/journals/oral-surgery-oral-medicine-oral-pathology-and-oral-radiology/2212-4403/guide-for-authors. Accessed Aug 8, 2013.