The application of cephalometrics to cinefluorography. II. Comparative study of hyoid movement patterns during deglutition and phonation in Class II orthodontic patients: By Robert F. Sloan, Robert M. Ricketts, Ruel W. Bench, James Mulick, and Stanley Brummett, University of California at Los Angeles, School of Dentistry, and St. John's Hospital, Santa Monica, Calif.