c("tumor type: Lung adenocarcinoma", "cell line: H1975 erlotinib-resistant H1975 cells (strain M1)")
c("tumor type: Lung adenocarcinoma", "cell line: H1975 (parental)")
c("tumor type: Lung adenocarcinoma", "cell line: H1975 (parental)")
c("tumor type: Lung adenocarcinoma", "cell line: H1975 erlotinib-resistant H1975 cells (strain M2)")
c("tumor type: Lung adenocarcinoma", "cell line: H1975 erlotinib-resistant H1975 cells (strain M1)")
c("tumor type: Lung adenocarcinoma", "cell line: H1975 erlotinib-resistant H1975 cells (strain M2)")