De Vet, Henrica C. W., Terwee, Caroline B., Mokkink, Lidwine B., Knol, Dirk L. (1) Petrie, Aviva (eastman Dental Institute, Sabin, Caroline (royal Free Hospital (1) Petrie, Aviva (eastman Dental Institute, Sabin, Caroline (university College London) (1) Jevon, Philip (manor Hospital, Epstein, Elliot, Mensforth, Sarah, Macmahon, Caroline (1) Glazzard, Jonathan, Bligh, Caroline (1)