A Multicentre, Randomized Phase III Study of Rituximab as Maintenance Treatment Versus Observation in Patients With Aggressive B-cell Lymphoma: NHL-13

Taipei Veterans General Hospital, Taipei

Kaohsiung Medical University Hospital, Kaohsiung City

Institut of Oncology Ljubljana, Ljubljana

Clinical centre of Serbia, Belgrade

Clinical Centre Novi Sad, Novisad

North Estonian Regional Hospital, Tallinn

Tartu University Hospital, Tartu

Clinical Centre Nis, Niš

Institute of Oncology Sremska Kamenica, Kamenitz

Coltea Hospital, Bucharest

Osmangazi Univ. school of Medicine, Eskişehir

Gaziantep University School of Medicine, Gaziantep

Ericyes Univ. Med. School, Kayseri

Uddevalla Hospital, Uddevalla

University Center Tuzla, Tuzla

Falun Hospital, Falun

Sundsvall Hospital, Sundsvall

Sunderby Hospital, Luleå

Moscow Regional Clinical Research Institute, Moscow

Botkin City Clinical Hospital, Moscow

Leningrad regional Cliniacal Hospital, Saint Petersburg

SPB Pavlov State Medical University, Saint Petersburg

Belgorod regional Clinical Hospital, Belgorod

Republican Clinic Oncology Dispensary, Ufa

Novgorod Regional Clinical Hospital, Veliky Novgorod

Border Medical Oncology, Wodonga

Concord Repatriation General Hospital, Concord

Gosford Hospital, Gosford

Greenslopes Hospital, Greenslopes

Prince of Wales Hospital, Sydney

Centro Goiano de Oncologia, Goiânia

Hospital Santa Izabel, Salvador

Hospital das Clinicas FMUSP, São Paulo

Hospital deas Clinical FMUSP, São Paulo

"UMHAT St. George Plodviv", Plovdiv

Nat. Centre of Hematology and Transfusiology Sofia, Sofia

"MHAT St. Marina Varna", Varna

Chinese PLA General hospital, Beijing

West China Hospital of Sichuan University, Chengdu

Harbin Institue, Harbin

Jiangsu Cancer Hospital, Nanjing

Changhai Hospital, Shanghai

Shanghai Ruijin Hospital, Shanghai

Clinical Hopital Center Zagreb, Zagreb

Clinical Hospital Dubrava, Zagreb

"Clinicall Hospital Merkur", Zagreb

Nemocnice Boskovice s.r.o., Boskovice

Faculty Hospital Brno, Brno

Univ. Hospital and Med. School Hradec Kralove, Kralove

Onkologické Centrum J.G. Mendela, Novi Jicin

Fakultni Nemocnice Olomouc, Olomouc

Hospital Opava, Opava

Fakultni nemocnice Ostrava, Ostrava-Poruba

Charles University Hospital, Prague

Faculty Hospital Binohrady FNKV, Prague

University Hospital Motol, Prague

RTO MN Usti n. Labem, Ústí nad Labem

Queen Mary Hospital, Hong Kong

Tuen Mun Hospital, Hong Kong

Soroka Medical Centre, Beersheba

Rambam Medical Centre, Haifa

Rabin Medical Centre, Petah Tikva

Kaplan Medical Centre, Rehovot

Riga Hematology Center, Riga

Hospital Ampang, Ampang

Hospital University Kebangsaan Malaysia, Kuala Lumpur

ISSSTE Hospital Regional de Leon, León

Hospital Espanol de Mexico, Mexico City

Hospital General de Mexico, Mexico City

Instituto National de Cancerologia, Mexico City

Hospital Regional Monterrey, ISSTE, Monterrey

ISSSTEP Puebla, Puebla City

Clinical Centre Skopje, Skopje

Hospital Carlso alberto seguin escobedo Arequipa, Arequipa

Hospital Alberto Sabogal sooguren Callao, Callao

Coltea Hospital, Bucharest

University Emergency Center Bucharest, Bucharest

Clinic Judatean de Urgenta Brasov, Târgu Mureş

Emergency County Clinical Hospital, Târgu Mureş

National Cancer Institut Bratislava, Bratislava

OUSA Bratislava, Bratislava

Východoslovenský onkolgický ústav, Košice

Martinská fakultná nemocnima, Martin

Hopelands Cancer Centre, Pietremarizburg

Wilgers Oncology Centre, Pretoria

Taichung Veterans General Hospital, Taipei

King Chulalongkorn Memorial Hospital, Bangkok

Phramongkutklao College of Medicine, Bangkok

Ramathibodi Hospital, Bangkok

Siriray Hospital, Bangkok

Chiang Mai University, Chiang Mai

Srinagarind Hospital, Khon Kaen

Songklanagrarind Hospital, Songkhla

Krankenhaus Oberpullendorf, Oberpullendorf

Krankenhaus Oberwart, Oberwart

A.ö. Krankenhaus der Landeshauptstadt St. Pölten, Sankt Pölten

A.ö. Krankenhaus der Statutarstadt Wr. Neustadt, Wiener Neustadt

St. Johanns LK, Salzburg

A.ö. Landeskrankenhaus Steyr, Steyr

Bezirkskrankenhaus Kufstein, Endach

A.oe.Bezirkskrankenhaus Hall, Hall in Tirol

Universitätsklinik Innsbruck/ Klinik für Innere Medizin, Innsbruck

Universitaetsklinik Innsbruck, Innsbruck

Krankenhaus d. Barmherzigen Schwestern Linz, Linz

Krankenhaus der Elisabethinen Linz, Linz

KH Barmherzige Schwestern Ried, Ried

Klinikum Kreuzschwestern Wels GmbH, Wels

KH Barmherzige Brüder, Vienna

Krankenhaus der Stadt Wien Rudolfsstiftung, Vienna

AKH Wien / Hämatologie u. Hämostaseologie, Vienna

Kaiser-Franz-Josef-Spital, Vienna

Krankenhaus der Stadt Wien Lainz, Vienna

Hanusch-Krankenhaus, Vienna

Wilhelminenspital, Vienna

Sozialmedizinisches Zentrum Ost - Donauspital, Vienna

Landeskrankenhaus Feldkirch, Feldkirch

LKH Bregenz, Bregenz

KH Dornbirn, Dornbirn

A.ö. Landeskrankenhaus Fürstenfeld, Fürstenfeld

Universitätsklinikum Graz, Graz

LKH Hohenems, Hohenems

Landeskrankenhaus Klagenfurt, Klagenfurt

A.ö. Landeskrankenhaus Leoben, Leoben

Krankenhaus der Stadt Linz, Linz

LKH Weinviertel Mistelbach, Mistelbach

LKH Villach, Villach

LKH Vöcklabruck, Vöcklabruck

KH Waidhofen/Thaya, Waidhofen an der Thaya

BKH Zams, Zams

Clinical Centre University Sarajevo, Sarajevo

Ankara University, School of Medicine, Ankara