D. O. Lein

Contribution of common polymorphisms in reduced folate carrier and gamma-glutamylhydrolase to methotrexate polyglutamate levels in patients with rheumatoid arthritis.

J. Kremer, D. Furst, T. Dervieux, 2004, Pharmacogenetics.

Pharmacogenetic and metabolite measurements are associated with clinical status in patients with rheumatoid arthritis treated with methotrexate: results of a multicentred cross sectional observational study

J. Kremer, D. Furst, T. Dervieux, 2005, Annals of the rheumatic diseases.

Polyglutamation of methotrexate with common polymorphisms in reduced folate carrier, aminoimidazole carboxamide ribonucleotide transformylase, and thymidylate synthase are associated with methotrexate effects in rheumatoid arthritis.

Katie Smith, Daniel Furst, J. Kremer, 2004, Arthritis and rheumatism.