*A strong tool for response-guided therapy against HCV!
Gompertz-Matsui Calculator, an iPhone / iPod touch application, calculates Gompertz-Matsui formula from 3-point times (t0, t1, t2) and TaqMan viral loads of hepatitis C virus: HCV (A, B, C).

k: dumping constant
initial slope: initial decline rate of HCV
G.M.I: Gompertz-Matsui Index, a theoretical minimal value of HCV by anti-viral therapy
Gomp-Ex boundary: a threshold value of HCV between the first phase decline curve and the second phase decline slope