%0 Journal Article %A SIBYLLE KOLETZKO %A NIKOLAOS KONSTANTOPOULOS %A NORBERT LEHN %A DAVID FORMAN %T Control your controls and conclusions %D 2001 %R 10.1136/adc.84.6.525-c %J Archives of Disease in Childhood %P 525-525 %V 84 %N 6 %U