A clinical and physiological study of pregnancy in a material from northern Sweden. I. Observations with special regard to the cardiopulmonary function during the first trimester of pregnancy.
D002319:Cardiovascular System; D019069:Cell Respiration; D005260:Female; D006801:Humans; D011247:Pregnancy / Q000502:physiology; D011261:Pregnancy Trimester, First; D012119:Respiration; D013548:Sweden
CARDIOVASCULAR SYSTEM/in pregnancy; PREGNANCY/physiology; RESPIRATION/in pregnancy