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Near-Infrared Spectroscopy With Vascular Occlusion Test May Not Be the Adequate Tool to Explore Microcirculation in Pulmonary Arterial Hypertension—Reply

In Reply: 

We thank Dr Champion for his particular interest in our study and his thorough comments. However, we would like to share our concerns related to his comments.

In our point of view, we should use the microvascular oxygen extraction rate with caution, as it is not yet a valid accurate