we report serial measurements of bone mineral content ( bmc ) , bone width ( bw , a measure of appositional bone growth ) , and the ratio of bmc : bw by photon absorptiometry of the left radius through the first 10 wk of life in 38 very low birth weight premature infants ( birth weight less than 1300 g , gestational age less than 32 wk ) .
C0282666
very low
C0005612
birth weight