TY  - RPRT
TI  - Congenitally missing mandibular permanent central incisors.
AU  - P C Lehman
PY  - 1976
DO  - 10.1016/0030-4220(76)90155-9
UR  - https://pubmed.ncbi.nlm.nih.gov/1061929/
ID  - 1061929
ER  -