John G Williams

Evaluating innovations in the delivery and organisation of gastrointestinal services initiated directly or indirectly by the Modernising Endoscopy Services programme of the NHS Modernisation Agency: (ENIGMA): Report for the National Co-ordinating Centre for NHS Service Delivery and Organisation R&D

Frances Rapport, Hayley A Hutchings, Kymberley Thorne, 2008 .

Barriers and facilitators to change in the organisation and delivery of endoscopy services in England and Wales: a focus group study

Frances Rapport, Hayley A Hutchings, Anne C Seagrove, 2012, BMJ Open.

The RCP Information Laboratory (iLab): breaking the cycle of poor data quality.

G. P. Croft, John G Williams, John G. Williams, 2005, Clinical medicine.