英语语法分析

It was valuable for presymptomatic and antenatal diagnosis of NF1.

本研究方法对NF 1症状前诊断和产前诊断有重要应用价值。

It is not clear whether the asymptomatic patients are presymptomatic cases that will eventually develop the syndrome, or whether they have a static condition.

目前尚不清楚暂无症状的症状前患者是否最终会出现症状。