GDG member	Contribution	Representing
D R Baldwin Consultant respiratory physician, Nottingham	Co-chair, editing, sub-solid section, information section, definitions, summary conclusion, service organisation and algorithms	BTS
M E J Callister Consultant respiratory physician, Leeds	Co-chair, editing, observation, surgery, non-surgical treatment sections and algorithms	BTS
A R Akram Respiratory specialty trainee, Edinburgh	Further imaging section	BTS
S Barnard Consultant thoracic surgeon, Newcastle	Surgery section	BTS
P Cane Consultant pathologist, London	Non-surgical biopsy and biomarker sections
J Draffan Respiratory nurse specialist, Darlington	Information section	NLCFN
K Franks Consultant clinical oncologist, Leeds	Non-surgical treatments section
F Gleeson Consultant radiologist, Oxford	Technical radiology section	RCR
R Graham Consultant radiologist, Bath	Further imaging section	BNMS
P Malhotra Respiratory specialty trainee, Prescott	Route of presentation and initial assessment sections	BTS
M Prokop Consultant radiologist, Nijmegen	Technical radiology section
K A Rodger Consultant respiratory physician, Leeds	Non-surgical biopsy and biomarker sections	BTS
M Subesinghe Consultant radiologist, Oxford	Further imaging section
D Waller Consultant thoracic surgeon, Leicester	Surgery section	SCTS
I Woolhouse Consultant respiratory physician, Birmingham	Route of presentation and initial assessment sections	RCP London
Ms A Biagioli		Patient representative
Ms C Paterson		Patient representative