Juan J. NoguerasDepartment of Colorectal Surgery, Cleveland Clinic Florida, Weston,
Florida, U.S.A.
H. Juergen NordDepartment of Medicine, University of South Florida, Tampa, Florida, U.S.A.
Kevin W. OldenDivision of Gastroenterology, Mayo Clinic Scottsdale, Scottsdale, Arizona, U.S.A.
Gregory D. OldsHenry Ford Hospital, Detroit, Michigan, U.S.A.
Lucia OliveiraDepartment of Anorectal Physiology, Policlı´nica Geral do Rio de Janeiro, Rio de
Janeiro, Brazil
Derek PatelDivision of Gastroenterology, Department of Medicine, University of California–
San Diego, San Diego, California, U.S.A.
Johann PfeiferDepartment of General Surgery, University Clinic Medical School Graz, Graz,
Austria
Owais RahimDivision of Gastroenterology, Department of Medicine, Western Pennsylvania
Hospital, Clinical Campus of Temple University School of Medicine, Pittsburgh,
Pennsylvania, U.S.A.
Jeffrey B. RaskinDivision of Gastroenterology, Miami Miller School of Medicine, University of
Miami/Jackson Memorial Medical Center, Miami, Florida, U.S.A.
Thomas E. ReadDivision of Colon and Rectal Surgery, Department of Surgery, Western
Pennsylvania Hospital, Clinical Campus of Temple University School of Medicine, Pittsburgh,
Pennsylvania, U.S.A.
Harry L. ReynoldsCase Western Reserve University School of Medicine, University Hospitals of
Cleveland, Cleveland, Ohio, U.S.A.
Joffre Marcondes RezendeGastroenterology Service, Department of Internal Medicine, Medical
School of the Federal University of Goia´s, Goiaˆnia, Goia´s, Brazil
Raul RosenthalBariatric Institute, Cleveland Clinic Florida, Weston, Florida, U.S.A.
Mara R. SalumDepartment of Surgery, Syrian-Lebanese Hospital, Sa˜o Paulo, Brazil
Dana R. SandsDepartment of Colorectal Surgery, Cleveland Clinic Florida, Weston, Florida, U.S.A.
Laurence R. SandsDivision of Colon and Rectal Surgery, University of Miami School of Medicine,
Miami, Florida, U.S.A.
William SchecterDepartment of Clinical Surgery, University of California–San Francisco, and
Department of Surgery, San Francisco General Hospital, San Francisco, California, U.S.A.
Lawrence R. SchillerDepartment of Gastroenterology, Baylor University Medical Center, Dallas,
Texas, U.S.A.
Roanne R. E. SelingerDivision of Gastroenterology, Department of Internal Medicine, University
of Washington, Seattle, Washington, U.S.A.
Elin SigurdsonDivision of Medical Sciences, Fox Chase Cancer Center, Philadelphia,
Pennsylvania, U.S.A.
Roy M. SoetiknoDepartment of Veterans Affairs, Palo Alto Health Care System, Stanford
University School of Medicine, Stanford, California, U.S.A.
Neil StollmanDivision of Gastroenterology, University of California–San Francisco, San Francisco,
and East Bay Endosurgery, Oakland, California, U.S.A.
Christina M. SurawiczDepartment of Medicine, University of Washington School of Medicine,
Harborview Medical Center, Seattle, Washington, U.S.A.
Alex TeixeiraDepartment of Gastroenterology, Brockton Hospital, Brockton, Massachusetts, U.S.A.
Jonathan P. TerdimanDepartment of Medicine, University of California–San Francisco,
San Francisco, California, U.S.A.
Contributors xvii