[Rickets in children in rural areas and factors influencing its distribution].
D002648:Child; D006801:Humans; D012279:Rickets / Q000453:epidemiology*; D012423:Rural Health; D012424:Rural Population
RICKETS/epidemiology; RURAL CONDITIONS
Rakhitut vsred selskoto detsko naselenie i faktorite za negovoto razprostranenie.