Bouquet, J.

children study patient disease measurement growth bowel disease child body bmd sds weight reference palsy spine bmi sds tissue mass value gastro-oesophageal reflux screening pneumonia fibrosis body mass bone mineral density length risk factors population method crohn factor reflux bowel 2.5 years centre bmd sds delta rule mineral parent tissue inclusion spine bmd sds coliti pediatr reference values sample number page number citation purposes dysphagia information gastro-oesophageal table disability design height health consent netherland level group month diagnosis delta decrease assessment period dutch result density prevalence calcium inclusion criteria care centres hospital screening rules correlation criteria article sensitivity body mass index birth body bmd