目的 ：探讨爪甲色诊与甲床光电血管容积图的关系。

Objective:To observe the relationship between the fingernail colour and the photoplethysmogram.

youdao

目的 ：探讨爪甲色诊与甲床光电血管容积图的关系。

Objective:To observe the relationship between the fingernail colour and the photoplethysmogram.

youdao