Hydroxychloroquine levels in patients with systemic lupus erythematosus: whole blood is preferable but serum levels also detect non-adherence. Blanchet, Benoit; Jallouli, Moez; Allard, Marie; Ghillani-Dalbin, Pascale; Galicier, Lionel; Aumaître, Olivier; Chasset, François; Le Guern, Véronique; Lioté, Frédéric; Smail, Amar; Limal, Nicolas; Perard, Laurent; Desmurs-Clavel, Hélène; Le Thi Huong, Du; Asli, Bouchra; Kahn, Jean-Emmanuel; Sailler, Laurent; Ackermann, Félix; Papo, Thomas; Sacré, Karim; Fain, Olivier; Stirnemann, Jérôme; Cacoub, Patrice; Leroux, Gaelle; Cohen-Bittan, Judith; Sellam, Jérémie; Mariette, Xavier; Goulvestre, Claire; Hulot, Jean Sébastien; Amoura, Zahir; Vidal, Michel; Piette, Jean-Charles; PLUS Group; Jourde-Chiche, Noémie; Costedoat-Chalumeau, Nathalie. Arthritis Research & Therapy. 2020; 22: p.223. doi:10.1186/s13075-020-02291-zArticle