METHODS Blood was collected with heparin as the anticoagulant and kept at 0 C until
incubation. Hemoglobin concen-tration, hematocrit, and erythrocyte, reticulocyte, nucleated …

Thirteen cases of lead poisoning in children were studied hematologically and compared
with a similar age group with uncomplicated nutritional iron deficiency anemia. Both groups …

The enzyme glucose‐6‐phosphate dehydrogenase (G6PD) was assayed in the circulating
erythrocytes of 38 20‐ to 30‐year‐old subjects and 29 80‐ to 90‐year‐old subjects. The red …

A procedure is suggested for the assay of preparations of intrinsic factor by measuring the
urinary excretion of radioactivity following dosage with vit. B 12 labeled with cobalt 60. It was …

HÆMOGLOBIN S is found in a concentration of 35–45 per cent of the total hæmoglobin in
most individuals with sickle cell trait under non-stress conditions 1,2 . It is believed that the …

METHODS The survival of transfused erythrocytes was determined by the method of
DeGowin, Sheets, and Hamilton (7). Blood from normal type 0 donors was collected asep-tically'in …

Blood lead and serum δ-aminolevulinic acid levels were determined in groups of children
with increased lead absorption, lead intoxication, and lead encephalopathy. Although blood …

Anemic crises occur during the course of chronic hemolytic anemias, both congenital 1-3
and acquired. These crises, due to temporary cessation of red cell production, are usually …

The relative rates of incorporation of Fe 59 into heterogenic hemoglobins was studied in four
patients with sickle cell trait. Three of the patients were free of superimposed disease, while …

In newborn infants with sickle cell trait, the percentage of erythrocytes capable of being sickled
in vitro gradually rose during the first 4 months of life. A concomitant fall in the percentage …