Fig. 1From: Impact of ultrasound on management for dyspnea presentations in a Rwandan emergency departmentThe areas of lung ultrasonography considered in the study. Areas 1 and 2: upper anterior and lower anterior; areas 3 and 4: upper lateral and basal lateral. Each area was the same on right and left side. AAL, anterior axillary line; PAL, posterior axillary line [11]Back to article page