Chang-Sung Kim

Effects of chitosan on human periodontal ligament fibroblasts in vitro and on bone formation in rat calvarial defects.

Seong-Ho Choi, Kyoo-Sung Cho, Chong-Kwan Kim, 2005, Journal of periodontology.

The effect of recombinant human bone morphogenetic protein-4 on the osteoblastic differentiation of mouse calvarial cells affected by Porphyromonas gingivalis.

Seong-Ho Choi, Kyoo-Sung Cho, Chong-Kwan Kim, 2002, Journal of periodontology.

Calcium phosphate

Yong-Keun Lee, Kyoo-Sung Cho, Chong-Kwan Kim, 1964, Reactions Weekly.