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Bioassay for detection of methotrexate in serum.
de Lathouder S, Gerards AH, de Groot ER, Valkhof MG, Dijkmans BA, Aarden LA. de Lathouder S, et al. Among authors: de groot er. Scand J Rheumatol. 2004;33(3):167-73. doi: 10.1080/03009740310004865. Scand J Rheumatol. 2004. PMID: 15228187 Clinical Trial.
Imaging and serum analysis of immune complex formation of radiolabelled infliximab and anti-infliximab in responders and non-responders to therapy for rheumatoid arthritis.
van der Laken CJ, Voskuyl AE, Roos JC, Stigter van Walsum M, de Groot ER, Wolbink G, Dijkmans BA, Aarden LA. van der Laken CJ, et al. Among authors: de groot er. Ann Rheum Dis. 2007 Feb;66(2):253-6. doi: 10.1136/ard.2006.057406. Epub 2006 Jun 22. Ann Rheum Dis. 2007. PMID: 16793840 Free PMC article.
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