FoxN. A. (1993) The first 100 cases: a personal audit of orthodontic treatment assessed by the PAR Peer Assessment Rating) index. Br. Dent. J., 174, 290–297.
2.
RichmondS., ShawW. C., StephensC. D., WebbW. G., RobertsC. T., AndrewsM. (1993) Orthodontics in the General Dental Service of England and Wales: a Critical Assessment of Standards. Br. Dent., 174, 315–329.
