c("cell line: A549", "tissue: lung carcinoma")
c("cell line: A549", "tissue: lung carcinoma")
c("cell line: A549", "tissue: lung carcinoma")
c("cell line: A549", "tissue: lung carcinoma")
c("cell line: A549", "tissue: lung carcinoma")
c("cell line: A549", "tissue: lung carcinoma")