A study of therapeutic effects of serum free conditioned media derived from stem cells from human exfoliated deciduous teeth for rheumatoid arthritis. (October 2015) - Ishikawa, J.; Yamamoto, N.; Nishikawa, M.; Furue, H.; Hagiwara, S.; Wakayama, H.; Yamaguchi, S.; Hibi, H.; Yamamoto, A.