fig1
![Brain metastasis as exclusion criteria in extensive-stage small cell lung cancer trials: a trend over decades](https://image.oaes.cc/ab9a4395-ff10-4f9f-a02e-00c794de0463/3356.fig.1.jpg)
Figure 1. A trend of brain metastasis as exclusion criteria in extensive-stage small cell lung cancer. Each bar indicates percentage of each group regarding exclusion of brain metastasis
Figure 1. A trend of brain metastasis as exclusion criteria in extensive-stage small cell lung cancer. Each bar indicates percentage of each group regarding exclusion of brain metastasis
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