Research Article

Chinese Herbal Decoction Based on Syndrome Differentiation as Maintenance Therapy in Patients with Extensive-Stage Small-Cell Lung Cancer: An Exploratory and Small Prospective Cohort Study

Figure 4

Patients received PPS longer than PFS with long-term CHD treatment. The extension of PPS was beneficial from early tumor shrinkage and deepness of response, providing the chance to use extended CHD treatment.