以下のコメントを非表示にします。宜しいですか？　 ※一度非表示にした場合、元に戻せません。　 　コメントを非表示にした操作の一切の責任はサイト運営者が負うことはなく、非表示操作をしたユーザの責任となります。 419：Emmitt  ID:#52f7937e96    2019-06-11 11:15:15 Thanks funny site http://xnxx.photography/ xnxx tube Human embryonic stem cells, or hESCs, are thought to have greater potential for treating disease because of their ability to turn, or differentiate, into more types of human cells than adult stem cells can, yet there are no FDA-approved treatments that use them. The major concern with transplanting hESCs into patients is the potential for hESCs to grow tumors, including teratoma--tumorlike formations containing tissues belonging to all three germ layers.