Masatoshi Jumi Einoshin Suzuki Muneaki Ohshima Ning Zhong Hideto Yokoi Katsuhiko Takabayashi Spiral Discovery of a Separate Prediction Model from Chronic Hepatitis Data. 464-473 2004 JSAI Workshops http://dx.doi.org/10.1007/978-3-540-71009-7_44 conf/jsai/2004 db/conf/jsai/jsai2004.html#JumiSOZYT04