Society of Thoracic Surgeons Fort Lauderdale, FL January 30. – 31. 2012 Booth #: 209 / 211 American Association of Neurological Surgeons Miami, FL April 16. - 18. 2012 Booth #: TBD American Association of Thoracic Surgeons San Francisco, CA April 29. - May 01. 2012 Booth #: TBD Intl. Society for Minim. Invasive Cardiac Surgery San Francisco, CA May 30. – June 01. 2012 Booth #: TBD Congress of Neurological Surgeons Chicago, IL October 08. – 10. 2012 Booth #: TBD North American Spine Society Dallas, TX October 25. – 27. 2012 Booth #: TBD North American Spine Society Chicago, IL November 02. – 04. 2011 Booth #: TBD