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Iowa clinical RBCTx practice is more liberal than PINT restrictive threshold Hb criteria. Hb concentration when individual study infants were transfused is shown compared to the successive postnatal decline in Hb for the PINT restrictive threshold Hb RBCTx criteria for infants requiring respiratory support. Capillary Hb levels (triangles) are 10% higher than central Hb levels (circles). The dashed line represents the line of identity.
