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de Jong N, Chin A Paw MJ, de Groot LC, Rutten RA, Swinkels DW, Kok FJ, van Staveren WA.de Jong N, et al. Among authors: kok fj.Am J Clin Nutr. 2001 Feb;73(2):338-46. doi: 10.1093/ajcn/73.2.338.Am J Clin Nutr. 2001.PMID: 11157333Clinical Trial.
van de Rest O, Geleijnse JM, Kok FJ, van Staveren WA, Hoefnagels WH, Beekman AT, de Groot LC.van de Rest O, et al. Among authors: kok fj.Am J Clin Nutr. 2008 Sep;88(3):706-13. doi: 10.1093/ajcn/88.3.706.Am J Clin Nutr. 2008.PMID: 18779287Free article.Clinical Trial.
de Jong N, Chin A Paw MJ, de Groot LC, de Graaf C, Kok FJ, van Staveren WA.de Jong N, et al. Among authors: kok fj.J Nutr. 1999 Nov;129(11):2028-36. doi: 10.1093/jn/129.11.2028.J Nutr. 1999.PMID: 10539780Clinical Trial.
Chin A Paw MJ, de Jong N, Schouten EG, Hiddink GJ, Kok FJ.Chin A Paw MJ, et al. Among authors: kok fj.Arch Phys Med Rehabil. 2001 Jun;82(6):811-7. doi: 10.1053/apmr.2001.23278.Arch Phys Med Rehabil. 2001.PMID: 11387588Clinical Trial.
Chin A Paw MJ, de Jong N, Schouten EG, van Staveren WA, Kok FJ.Chin A Paw MJ, et al. Among authors: kok fj.Br J Sports Med. 2002 Apr;36(2):126-31. doi: 10.1136/bjsm.36.2.126.Br J Sports Med. 2002.PMID: 11916896Free PMC article.Clinical Trial.
Mars M, de Graaf C, de Groot LC, Kok FJ.Mars M, et al. Among authors: kok fj.Am J Clin Nutr. 2005 Mar;81(3):570-7. doi: 10.1093/ajcn/81.3.570.Am J Clin Nutr. 2005.PMID: 15755824Free article.
Engberink MF, Geleijnse JM, de Jong N, Smit HA, Kok FJ, Verschuren WM.Engberink MF, et al. Among authors: kok fj.J Nutr. 2009 Mar;139(3):582-7. doi: 10.3945/jn.108.093088. Epub 2009 Jan 21.J Nutr. 2009.PMID: 19158223Free article.
van de Rest O, Geleijnse JM, Kok FJ, van Staveren WA, Olderikkert MG, Beekman AT, de Groot LC.van de Rest O, et al. Among authors: kok fj.J Am Geriatr Soc. 2009 Aug;57(8):1481-6. doi: 10.1111/j.1532-5415.2009.02361.x. Epub 2009 Jun 22.J Am Geriatr Soc. 2009.PMID: 19549020Clinical Trial.