*Konijnenberg A, Megens MP, Willems PM., No relationship between so-called 'haemopyrrollactamuria' and fatigue in secondary-school students. Ned Tijdschr Geneeskd. 2007 Dec 22;151(51):2838-40 | *Konijnenberg A, Megens MP, Willems PM., No relationship between so-called 'haemopyrrollactamuria' and fatigue in secondary-school students. Ned Tijdschr Geneeskd. 2007 Dec 22;151(51):2838-40 |