Congenitally missing first permanent molars: unusual course of development.

@article{Jrvinen1984CongenitallyMF,
  title={Congenitally missing first permanent molars: unusual course of development.},
  author={Siiri J{\"a}rvinen},
  journal={ASDC journal of dentistry for children},
  year={1984},
  volume={51 5},
  pages={
          374-5
        }
}