According to the author, how do scientists typically refer to Henrietta Lacks?

Henrietta is most often referred to as "HeLa

Henrietta's cells were the first "immortal" cells in a laboratory that made science advance big steps.

Explanation:

Rebecca Skloot was a reporter who was following the story of a woman named Henrietta Lacks, this woman that was once diagnosed with cervical cancer became a very important part of human science since her cells after being treated and grown in the laboratory turned to be the first cell that grew new every 24 hours which other cells don't do, this cells got the name HELA that now are the base of genetic and cellular study.

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