Tomoyuki Nagata Masaomi Kimura Fumito Tsuchiya Similarity Index for Sound-alikeness of Drug Names with Pitch Accents. 1519-1528 2014 KES https://doi.org/10.1016/j.procs.2014.08.235 conf/kes/2014 db/conf/kes/kes2014.html#NagataKT14