Plasma 25-hydroxyvitamin D and rickets in low birthweight babies.
D015652:25-Hydroxyvitamin D 2; D004872:Ergocalciferols / Q000031:analogs & derivatives* / Q000097:blood; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000097:blood*; D012279:Rickets / Q000097:blood*
D004872:Ergocalciferols; D015652:25-Hydroxyvitamin D 2