title: Transformation from NSCLC to SCLC: when did it happen? - Authors' reply.
authors.affiliation: Massachusetts General Hospital Cancer Center, Department of Medicine and Harvard Medical School, Boston, MA 02114, USA. Electronic address: jengelman@partners.org.
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Engelman
authors.affiliation: Massachusetts General Hospital Cancer Center, Department of Medicine and Harvard Medical School, Boston, MA 02114, USA.
authors.forename: Matthew G
authors.initials: MG
authors.lastname: Oser
authors.affiliation: Massachusetts General Hospital Cancer Center, Department of Medicine and Harvard Medical School, Boston, MA 02114, USA.
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Niederst
authors.affiliation: Massachusetts General Hospital Cancer Center, Department of Medicine and Harvard Medical School, Boston, MA 02114, USA.
authors.forename: Lecia V
authors.initials: LV
authors.lastname: Sequist
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D002289:Carcinoma, Non-Small-Cell Lung / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D006801:Humans; D055752:Small Cell Lung Carcinoma / Q000473:pathology*