Fig. 2
From: Vitamin C deficiency can lead to pulmonary hypertension: a systematic review of case reports
Pulmonary vascular resistance (PVR) during scurvy and after vitamin C administration. PVR was available at the baseline for 9 cases, but 1 case died before vitamin C [78]. Follow-up PVR level was available for 5 cases with the lines showing the paired values. During scurvy, the PVR level was 9 times (median) as high as during vitamin C administration. The red dash line indicates 2 Wood units, which is the limit for concluding PAH [33]. See extracted data in Supplement 2