Immunohistochemical analyses are used to determine the biochemical affinity of the antibodies for their target antigens in both normal and tumor tissue from diverse cancers. RECEPTA biopharma's immunohistochemistry is carried out at the Medical Investigation Laboratory (LIM-14) of the Medical Faculty of the University of São Paulo under the coordination of Dr. Venâncio Avancini Alves, the incumbent Pathology Chair who is an internationally renowned scientist in this area.