—— 请按键盘 空白键 开始游戏 ——

在医疗保健领域,走捷径从来不是选择。
The only way to achieve the impossible is to believe it is possible.
"Randomized experiments are the gold standard for causal inference, but they are not always feasible."
天地和宇宙虽然广阔,但在更大的尺度上也不过是一小部分。