Kinirons, M.J., Srinivasan, V., Welbury, Richard ORCID: 0000-0002-9322-2440 and Finucane, D.
(2001)
A study in two centres of variations in the time of apical barrier detection and barrier position in nonvital immature permanent incisors.
International Journal of Paediatric Dentistry, 11
(6).
447 -451.
ISSN 0960-7439