anemia treatment of thalassemia management of thalassemia thalassemia treatment thalassemia and pregnancy amniocentesis chorionic villi testing postnatal care intrapartum care antenatal care pregnancy mentzer index cbc mchc mch mcv alpha thalassemia beta thalassemia thalassemia management of pcos rotterdam criteria ovarian disorders polycysts clinical features of pcod clinical features of pcos treatment of pcos pcod syndrome ovarian polycystic pcos folic acid absorption folic acid metabolism vitamin b12 metabolism b12 metabolism b12 absorption spina bifida neural tube defects b12 deficiencies b12 symptoms clinical features of megaloblastic anemia clinical features of anemia b12 vitamin b12 folic acid folate deficiency types of anemia megaloblastic macrocytic anemia etiology of anemia degrees comparison degrees of comparison degree
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