All subjects gave informed, written consent and approval to conduct these studies was obtained from the ethics committee of The University of The West Indies.
Antral gastric biopsies were donated by 31 H. pylori-infected and 23 uninfected patients attending the University Hospital, Nottingham, for routine upper gastrointestinal endoscopy, with informed written consent and approval from the Nottingham Research Ethics Committee.
Cord blood and adult peripheral blood was collected anonymously, with informed written consent, following ethics approval by the Oxford and Berkshire Research Ethics Committee and with Institutional R&D approval.
Participants provided informed written consent and ethical approval was obtained from the Aston University Ethics Committee.
After community approval, informed written consent was obtained from each woman before participation.
People participated with informed written consent and the approval of the local ethics committee in accordance with the Declaration of Helsinki.
All participants provided informed written consent under ethical approval granted from local ethics committees (New Zealand AKX/02/00/364; Australia REC 1712/5/2008; London, Leeds, and Manchester 06/MRE01/98; and Cork ECM5(10 05/02/08).
All subjects provided informed written consent and ethical approval for this study was given by the New Zealand Multi-region Ethecs Committee and the Lower South Ethics Committee, and the Research and Ethics Committee of the Repatriation General Hospital, Adelaide.
All participants provided informed, written consent, and ethical approval for the study was obtained from the Alberta Cancer Board and the University of Calgary Ethics Review Boards.
The data have been appropriately de-identified, and appropriate IRB approval and informed, written consent were obtained by the glue grant investigators [57].
