Laboratory for Statistical Analysis, Waseda University, Shinjuku, Tokyo, Japan.|Laboratory for Statistical Analysis, Waseda University, Shinjuku, Tokyo, Japan.|Laboratory for Statistical Analysis, Waseda University, Shinjuku, Tokyo, Japan.|Laboratory for Statistical Analysis, Waseda University, Shinjuku, Tokyo, Japan.|Laboratory for Statistical Analysis, Waseda University, Shinjuku, Tokyo, Japan.|Laboratory for Statistical Analysis, Waseda University, Shinjuku, Tokyo, Japan.|Laboratory for Statistical Analysis, Waseda University, Shinjuku, Tokyo, Japan.|Laboratory for Statistical Analysis, Waseda University, Shinjuku, Tokyo, Japan.|Laboratory for Statistical Analysis, Waseda University, Shinjuku, Tokyo, Japan.