1. Volume 96, Issue 2, Pages 381-388 (August 1989)
Dyspnea in Pregnancy 
Col. Michael F. Tenholder, M.D., F.C.C.P., Maj. Jeannette E. South-Paul, M.D. 
CHEST 
Volume 96, Issue 2, Pages (August 1989)
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Copyright © 1989 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
PA chest film (Nov 2, 1987) shows bilateral parenchymal lower lobe infiltrates.
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Copyright © 1989 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
PA chest film of the same patient, one month later, shows resolution of the infiltrates.
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Copyright © 1989 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Partition of the increased oxygen consumption in pregnancy among the organs concerned.
(From de Swiet M. The respiratory system. In: Hytten FE, Chamberlain G, eds. Clinical physiology in obstetrics. Oxford: Blackwell Scientific Publications, 1980:91. Used by permission.)
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Copyright © 1989 The American College of Chest Physicians Terms and Conditions