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2. The circulating red cell volume and body hematocrit in normal pregnancy and the puerperium;Caton WL;Am J Obstet Gynecol.,1951
3. Increase in plasma volume during normal pregnancy;Hytten FE;J Obstet Gynaecol Br Commonw.,1963
4. Blood volume during pregnancy. Significance of plasma and red cell volumes;Lund CJ;Am J Obstet Gynecol.,1967
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