Fitting of Japanese male vitality curves by Furukawa model of vitality.

Three termed gamma distribution model of vitality, Furukawa model of vitality, is found to fit human vitality curves well. For more information, please read the attached PDF file and my profile.<br> I do not know well about the background of this model, but continued researching for a long time since he gave me an EXCEL file to me. All the life table data which I tried to fit could be well fit by this model. This was the start point of my research. <br>