1995b-111 2009h-315 adolescent adolescentnutritionalphysiologicalphenomena child childnutritionalphysiologicalphenomena childnutritiondisorders children deficiency infant infantnutritionalphysiologicalphenomena infantnutritiondisorders nutrition parenteralnutrition pediatrics psychologicalaspects therapy traceelements ws115 ws115c5371995 ws115n985312008