Review Article

Prognostic Models for Predicting Overall Survival in Patients with Primary Gastric Cancer: A Systematic Review

Figure 2

Number of published prognostic models by publication year. The estimated number of prognostic model in 2018 was calculated based on the assumption that the model number was proportionate to the number of months. We found 16 models through 30th May in 2018, and the estimated model number in 2018 would be .