Chang, R S Observations on the growth phases of human amnion cell cultures. [electronic resource] - Journal of the National Cancer Institute Mar 1968 - 491-503 p. digital Publication Type: Journal Article ISSN: 0027-8874 Subjects--Topical Terms: Amnion--cytologyCell Division--drug effectsCulture TechniquesHumansHydrocortisone--pharmacologyMitosis