References
- Institute CaS. Procedures for the Handling and Processing of Blood Specimens for Common Laboratory Tests; Approved Guideline—Fourth Edition. Wayne, PA: Standard No.: GP44-A4.
- Lehmann S, Guadagni F, Moore H, et al. Standard preanalytical coding for biospecimens: review and implementation of the Sample PREanalytical Code (SPREC). Biopreserv Biobank. 2012;10(4):366–374.
- Bowen RA, Chan Y, Cohen J, et al. Effect of blood collection tubes on total triiodothyronine and other laboratory assays. Clin Chem. 2005;51(2):424–433.
- Omang SH, Vellar OD. Analytical error due to concentration gradients in frozen and thawed samples. Clin Chim Acta. 1973;49(1):125–126.
- Hirano T, Yoneyama T, Matsuzaki H, et al. Simple method for preparing a concentration gradient of serum components by freezing and thawing. Clin Chem. 1991;37(7):1225–1229.
- Marquez CP, Petersen JR, Okorodudu AO. Critically low sodium levels due to concentration gradients formed in patient samples after undergoing a freeze-thaw cycle. Clin Chim Acta. 2018;484:218–222.
- Ramirez-Rubio O, McClean MD, Amador JJ, et al. An epidemic of chronic kidney disease in Central America: an overview. J Epidemiol Community Health. 2013;67(1):1–3.
- Wesseling C, Aragon A, Gonzalez M, et al. Kidney function in sugarcane cutters in Nicaragua–A longitudinal study of workers at risk of Mesoamerican nephropathy. Environ Res. 2016;147:125–132.
- Roncal-Jimenez C, Garcia-Trabanino R, Barregard L, et al. Heat stress nephropathy from exercise-induced uric acid Crystalluria: a perspective on mesoamerican nephropathy. Am J Kidney Dis. 2016;67(1):20–30.
- Wesseling C, Crowe J, Hogstedt C, et al. Resolving the enigma of the mesoamerican nephropathy: a research workshop summary. Am J Kidney Dis. 2014;63(3):396–404.
- Bodin T, Garcia-Trabanino R, Weiss I, et al. Intervention to reduce heat stress and improve efficiency among sugarcane workers in El Salvador: Phase 1. Occup Environ Med. 2016;73(6):409–416.
- Wegman DH, Apelqvist J, Bottai M, et al. Intervention to diminish dehydration and kidney damage among sugarcane workers. Scand J Work Environ Health. 2018;44(1):16–24.
- Bronsema KJ, Bischoff R, van de Merbel NC. Internal standards in the quantitative determination of protein biopharmaceuticals using liquid chromatography coupled to mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci. 2012;893–894:1–14.
- Ricos C, Alvarez V, Cava F, et al. Current databases on biological variation: pros, cons and progress. Scand J Clin Lab Invest. 1999;59:491–500.
- Bonini P, Plebani M, Ceriotti F, et al. Errors in laboratory medicine. Clin Chem. 2002;48(5):691–698.