Fig. 4From: Vitamin C deficiency can lead to pulmonary hypertension: a systematic review of case reportsEffect of vitamin C on LV eccentricity index in pulmonary hypertension patients. Normal LV eccentricity index is 1.0 [33, 109]. Each point indicates an observation, and the lines are added to help visualize the change over time. Time point 0 indicates the start of vitamin C administration. Data are from (A) Tan [103], (B) Kupari [90], and (C) Quinn [98]Back to article page