title: Finding Waldo: the emerging field of circulating tumor cells.
authors.affiliation: Science writer and producer, Brooklyn, NY; vkumar@dimagi.com.
authors.forename: Vikram Sheel
authors.initials: VS
authors.lastname: Kumar
authors.affiliation: Boston Children's Hospital, Boston, MA.
authors.forename: Molly
authors.initials: M
authors.lastname: Webster
mesh_terms: D006801:Humans; D009360:Neoplastic Cells, Circulating / Q000473:pathology*; D012680:Sensitivity and Specificity; D059010:Single-Cell Analysis