PRIMARY OBJECTIVES; I. Identify changes in immune system parameters in patients receiving immunotherapies (including immune checkpoint inhibitors, immunostimulatory/immunomodulatory agents, cellular therapies, stem cell transplantation) and compare to changes in patients receiving conventional chemotherapy, targeted-agent therapy, and healthy normal volunteers using multiparameter flow cytometry, time-of-flight mass cytometry, cytokine quantification, functional analysis of immune cell subsets isolated via fluorescence activated cell sorting (FACS), and genetic and proteomic techniques (deoxyribonucleic acid [DNA] sequencing, ribonucleic acid sequence [RNASeq], reverse transcriptase-polymerase chain reaction [RT-PCR], Western blot).