Antigen-Antibody Affinity for Dry Eye Biomarkers by Label Free Biosensing. Comparison with the ELISA Technique. - María F. Laguna; Miguel Holgado; Ana L. Hernandez; Beatriz Santamaría; Álvaro Lavín; Javier Soria; Tatiana Suarez; Carlota Bardina; Mónica Jara; Francisco J. Sanza; Rafael Casquel (Sensors, 2015)