Blaabjerg , O. ., Nørgaard , I. ., Blom , M. ., Rahbek Nørgaard , J. ., Hyltoft Petersen , P. ., Gry , H. ., & Uldall , A. . (1994). Reference Intervals Based on a Danish Population. Upsala Journal of Medical Sciences, 99(3), 315–338. https://doi.org/10.3109/03009739409179376