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by Hobkirk, John A.; Gill, Daljit S.; Jones, Steven P.; et al.
by John A. Hobkirk (Emeritus Professor of Prosthetic Dentistry, UCL Eastman Dental Institute, London, UK); Daljit S. Gill (Consultant in Orthodontics, UCL Eastman Dental Institute, London, UK); Steven P. Jones (Honorary Senior Lecturer in Orthodontics,
by Zarb, George A.; Hobkirk, John; Eckert, Steven; et al.