Ullevael Sykehus; Dept of Oncology, Oslo, Norway
The Norvegian Radium Hospital Montebello; Dept of Oncology, Oslo, Norway
St. Olavs Hospital; Kreftavdelingen, Trondheim, Norway
Peking University People's Hospital, Beijing, China
General Hospital of Chinese PLA; Department of Hematology, Beijing, China
Beijing Union Hospital, Beijing, China