Cell microarray screening and bioanalytical services for scientific and medical research purposes; Providing target screening analysis by using novel cell-based platform technologies; Drug discovery services; Pharmaceutical drug development and discovery services, namely, providing a DNA-encoded protein library screening platform for test articles; Scientific research services, namely, identification of cell surface receptors, specificity and off-target testing, target deconvolution and functionality assessment, for small molecules, large molecules, antibodies and related molecules, proteins, and cell and gene therapies