1. School of Dentistry, The University of Manchester; Coupland III Building, Oxford Road Manchester UK M13 9PL
2. NHS Herefordshire; Public Health Department; Ruckhall Lane Belmont Hereford UK HR2 9RP
3. Public Health England - Cumbria and Lancashire; Room 251, Preston Business Centre Watling Street Road Fulwood UK PR2 8DY
4. Leeds Dental Institute; Fixed & Removable Prosthodontics; Clarendon Way Leeds UK LS2 9LU
5. Kings College London Dental Institute; Primary Dental Care; Denmark Hill Campus Caldecot Road London UK SE5 9RW
6. UK Cochrane Centre; Oxford UK