Organized Oral Sessions provide an additional opportunity to propose a session of talks focused on a specific topic with invited speakers. Additional presentations may also be assigned to these sessions by the Program Chairs. Organized Oral Sessions do not require as broad a level of interest and synthesis as is expected of Symposia. Organized Oral Sessions will last from 21/2 to 31/2 hours in length scheduled at half-day intervals. Each talk in an Organized Oral Session will be 15 minutes long, with 5 minutes for discussions or questions. Proposals for Organized Oral Sessions will be reviewed, evaluated and ranked by the Program Committee. The most suitable proposals will be accepted.