論 文 3 Safety and clinical efficacy on intranasal administration of mesenchymal stem cell-derived secretome in patients with Alzheimer’s disease and its future prospect. Yuji Morita , Hiromi Izawa , Hayato O .3 Safety and clinical efficacy on intranasal administration of mesenchymal stem cell-derived secretome in patients with Alzheimer’s disease and its future prospect. Yuji Morita , Hiromi Izawa , Hayato Oダウンロード