Yuan, G C Testing of compounds for capacity to prolong postmitotic life-span of cultured human amnion cells. Effect of steroids and Panax ginseng. [electronic resource] - Journal of gerontology Jan 1969 - 82-5 p. digital Publication Type: Journal Article ISSN: 0022-1422 Standard No.: 10.1093/geronj/24.1.82 doi Subjects--Topical Terms: Amnion--cytologyCell Division--drug effectsCulture TechniquesGlucocorticoids--pharmacologyHumansMagnoliopsidaMethodsPlant Extracts--pharmacology