前面2各回答都是错的。医学上的prn是pro re nata，意思是按需治疗，常用在眼科抗vegf治疗，t&e是treat and extend也是眼科抗vegf治疗的方案，意思是到了规定的随访时间先进行治. Pastel de nata 问题五：葡式蛋挞介绍英文 30分 the egg tart or egg custard tart (monly romanized as dan tat) is a kind of custard tart pastry monly found in hong kong and other asian.
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