Baba, Kyoko, Yoshika Sugimoto, Kazuno Moriyama, Kenichi Kumazawa, Takayuki Sugimoto, Yasuharu Yamazaki, & Akira Takeda. " Long-term cryopreserved umbilical cord derived mesenchymal stem cells: A study on their safety." Medical Research Archives [Online], 12.10 (2024): n. pag. Web. 22 Dec. 2024