[1
]
Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD.
[2
]
Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National
and Kapodistrian University of Athens, Athens, Greece.
[3
]
Experimental - Research Center ELPEN, Harvard Medical School, Boston, MA.
[4
]
Division of Surgical Oncology, The Ohio State University Comprehensive Cancer Center,
Columbus, OH.