References
- Larsson, E. (1972) Dummy- and finger-sucking habits with special attention to their significance for facial growth and occlusion. 4. Effect on facial growth and occlusion, Swedish Dental Journal, 65, 605–634.
- Rönnerman, A. (1977) Effect of early loss of primary molars on tooth eruption and space conditions. A longitudinal study, Acta Odontologica Scandinavica, 35, 229–239.