INSTRUCTIONS: Abstracts must be provided electronically and confined within the frame below (400 word count or less). Provide the title in upper case type, followed by the names of all authors and the authors' institution. Leave a space, then proceed with the main text, using a structured format with subheadings: Background, Methods, Results (or Case Reports), and Conclusions. Figures and tables must also be contained within the frame. The text should be size 10 Times New Roman font.