Subset of the periodontal ligament expressed leptin receptor contributes to part of hard tissue-forming cells oleh Hirotsugu Oka, Shinichirou Ito, Mana Kawakami, Hodaka Sasaki, Shinichi Abe, Satoru Matsunaga, Sumiharu Morita, Taku Noguchi, Norio Kasahara, Akihide Tokuyama, Masataka Kasahara, Akira Katakura, Yasutomo Yajima, Toshihide Mizoguchi