Ong, Janus P.a; Mullen, Kevin D.b
aDepartment of Gastroenterology, Cleveland Clinic Foundation; and bMetrohealth Medical Center, Cleveland, OH, USA
Correspondence to Dr Kevin D. Mullen, Department of Gastroenterology, Metrohealth Medical Center, 2500 Metrohealth Drive, Cleveland, OH 44109, USA Tel: +1 216 778 2235; fax: +1 216 778 4873; e-mail: [email protected]
