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Vitamin D deficiency in the critically ill.
Koekkoek WA, van Zanten AR. Koekkoek WA, et al. Ann Med. 2016 Aug;48(5):301-4. doi: 10.3109/07853890.2016.1162910. Epub 2016 Apr 11. Ann Med. 2016. PMID: 27068511 No abstract available.
A Comatose Patient with a Bluish Tongue.
van Hulst AM, Lammers HJW, Koekkoek WACK, Smulders CA, Tjan DHT. van Hulst AM, et al. Among authors: koekkoek wack. Clin Chem. 2018 Aug;64(8):1143-1145. doi: 10.1373/clinchem.2017.278200. Clin Chem. 2018. PMID: 30054299 No abstract available.