[1] Southmead Gen Hosp, N Bristol NHS Trust, Bristol BS10 5NB, Avon, England
[2] Cent Manchester & Manchester Childrens Hosp, Manchester M13 9WL, Lancs, England
[3] Newcastle Gen Hosp, Newcastle Upon Tyne NE4 6BE, Tyne & Wear, England
[4] Community Hlth Clin, Royston SG8 6HH, Herts, England
[5] Royal Pharmaceut Soc GB, British Natl Formulary, London SE1 7JN, England
[6] Univ Cambridge, NHS Fdn Trust, Cambridge CB2 0QQ, England
[7] Manchester Royal Infirm, Manchester M13 9WL, Lancs, England
[8] Gloucestershire Royal Hosp, Gloucester GL1 3NN, England
[9] Royal Coll Nursing UK, London W1G 0RN, England
[10] Cardiff Univ, Dept Anaesthet & Intens Care Med, Cardiff CF14 4XN, S Glam, Wales
[11] Manchester Royal Infirm, Anaesthet React Clin, Manchester M13 9WL, Lancs, England
[12] Ambulance Serv Assoc, London SE1 8RT, England
[13] St Marys Hosp NHS Trust, London W2 1NY, England
[14] Univ Cambridge, NHS Fdn Trust, Cambridge CB2 0QQ, England
[15] Royal United Hosp, Bath BA1 3NG, Avon, England
[16] Royal Victoria Infirm, Newcastle Upon Tyne NE1 4LP, Tyne & Wear, England
[17] Univ Edinburgh, Gen Practice Sect Div Community Hlth Sci, Edinburgh EH8 9DX, Midlothian, Scotland
[18] John Radcliffe Hosp, Oxford OX3 9DU, England