- Archived tumor tissue available for evaluation of genetic and intra-tumoral protein or mRNA expression levels of relevant biomarkers. A minimum of 10 slides of archived tumor tissue is required; however, 15 slides should be sent, if available. For patients diagnosed on the basis of pleural effusions, efforts should be made to provide as many slides as possible made with cells obtained from pleural aspirates. Results of biomarkers will not be used to determine subject eligibility for the study;