Problems of foetal blood sampling.
D000136:Acid-Base Equilibrium; D000925:Anticoagulants; D001800:Blood Specimen Collection / Q000295:instrumentation; D002245:Carbon Dioxide / Q000097:blood; D005260:Female; D005333:Fetus; D006801:Humans; D008722:Methods; D011247:Pregnancy; D013242:Sterilization
D000925:Anticoagulants; D002245:Carbon Dioxide