P.  Cecchini, D'Aloisio, R., Antonuccio, M., Turco, G., Bondino, F., Magnano, E., Di Nicola, M., and Tognetto, D., ?Chemical and physical analysis of phaco handpiece tip surfaces before and after cataract surgery?, Journal of Cataract and Refractive Surgery, vol. 43, pp. 1107-1114, 2017.