title: Mismatching of population groups in thoracic surgery case control studies.
authors.affiliation: 1 Department of Thoracic Surgery, Papworth Hospital NHS Foundation Trust, Cambridge, UK ; 2 Research and Development, CTBI, Papworth Hospital, Cambridge, UK.
authors.forename: Marius
authors.initials: M
authors.lastname: Roman
authors.affiliation: 1 Department of Thoracic Surgery, Papworth Hospital NHS Foundation Trust, Cambridge, UK ; 2 Research and Development, CTBI, Papworth Hospital, Cambridge, UK.
authors.forename: Edward
authors.initials: E
authors.lastname: Caruana
authors.affiliation: 1 Department of Thoracic Surgery, Papworth Hospital NHS Foundation Trust, Cambridge, UK ; 2 Research and Development, CTBI, Papworth Hospital, Cambridge, UK.
authors.forename: Jules
authors.initials: J
authors.lastname: Hernandez-Sanchez
authors.affiliation: 1 Department of Thoracic Surgery, Papworth Hospital NHS Foundation Trust, Cambridge, UK ; 2 Research and Development, CTBI, Papworth Hospital, Cambridge, UK.
authors.forename: Piergiorgio
authors.initials: P
authors.lastname: Solli