Andreasen, J. O. Essentials of traumatic injuries to the teeth : a step-by-step treatment guide / J. O. Andreasen and F. M. Andreasen - 2nd ed. - St. Louis : Mosby, 2000 - 188 p. : ill. ; 32 cm. ISBN: 0323013538 RM357.42 Subjects--Topical Terms: Periodontium--injuriesTooth Injuries National Library of Medicine Call No.: WU158