This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Hartwell jonathan. Jonathan Hartwell Ph joined the National Cancer Institute as its first research chemist and initiated pioneering series of chemical and biological investigations aimed at the discovery of new anticancer drugs and furthering knowledge of carcinogenesis Topics Historical People National Cancer Institute People Type