1. Traumatic injuries of teeth;Andreasen,1981
2. Absorption;Bates;Br J Dent Sc L,1856
3. Root resorptions and their relation to pathologic bone formation;Becks;Int J Orthod,1936
4. Orthodontic prognosis;Becks;Am J Orthod,1939
5. Root resorptions and their relations to pathologic bone formation. Part II;Becks;Am J Orthod,1942