A.  Tirella, Marano, M., Vozzi, F., and Ahluwalia, A., ?A microfluidic gradient maker for toxicity testing of bupivacaine and lidocaine?, Toxicology in vitro, vol. 22, pp. 1957?64, 2008 [Online]. Available: http://www.ncbi.nlm.nih.gov/pubmed/18940244