Correspondence: Piotr Gabryel, MD, Department of Thoracic Surgery, Poznań University of Medical Sciences, ul Szamarzewskiego 62, Poznań 60-569, Poland (email@example.com).
Accepted for Publication: January 11, 2012.
Author Contributions:Study concept and design: Gabryel, Gą;siorowski, and Dyszkiewicz. Acquisition of data: Gabryel and Gałęcki. Analysis and interpretation of data: Gabryel and Dyszkiewicz. Drafting of the manuscript: Gabryel and Gałęcki. Critical revision of the manuscript for important intellectual content: Gąsiorowski and Dyszkiewicz. Study supervision: Dyszkiewicz.
Conflict of Interest Disclosures: None reported.