Leicester Biomedical Research Centre - Respiratory (LBRC) holds this ethically approved database designed for recruitment and research purposes. Adult members of the public and patients are invited to participate in the database by reading and signing an information sheet and consent form. The research section of the database stores anonymised data and information to be used for respiratory research purposes (no identifiable information). Researchers, either internal or external to the LBRC, are invited to formally apply to use the database for research purposes.