New classification of medical staff clinical services for optimal reconstruction of job workflow in a surgical ward: Application of spectrum analysis and sequence relational analysis. - Hodaka Numasaki; Hajime Harauchi; Yuko Ohno; Kiyonari Inamura; Satoko Kasahara; Morito Monden; Masato Sakon (Comput. Stat. Data Anal., 2007)

Analysis of Survival Data Having Time-Dependent Covariates. - Masaaki Tsujitani; Masato Sakon (IEEE Trans. Neural Networks, 2009)

Survival Data Analysis with Time-Dependent Covariates Using Generalized Additive Models. - Masaaki Tsujitani; Yusuke Tanaka; Masato Sakon (Comput. Math. Methods Medicine, 2012)