我们只是设法通过不同社会网络的连接找到所有的志愿者。
We just managed to find all our volunteers through connections with different social networks.
照片里的人的社会特征被掩盖住了，所以志愿者们只能根据他们的穿着进行判断。
The facial features of the man and woman in the pictures had been obscured so the volunteers were only making judgements about what they were wearing.
最后，医院院长，加西拉·梅萨医生面向社会号召志愿者。
Finally, the hospital head, Dr Gaxiola Meza, asked for volunteers.
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