Survival curves for the prognostic groups according to seven different scores, a–e, f, h 59 patients excluding multiple myeloma, g, i 69 patients including multiple myeloma: a Tokuhasi [15], b Tokuhashi revised [14], c Tomita [16], d Van der Linden [20], e Sioutos [13], f, g Bauer [2], h, i Bauer modified