Metabolomic and elemental profiling of blood serum in bladder cancer.

"c 2 3 medium-to-high polarity metabolites were extracted from serum samples as stated in our recent publication [ ] and detailed in section s1 in the supplementary data 2 4 serum samples were thawed at room temperature and diluted 500 times with methanol."

"Declaration of competing interest The authors declare that there are no conflicts of interest."

"Research was supported mainly by the National Science Center (Poland) (Project SONATA No.: UMO-2018/31/D/ST4/00109). 1H NMR spectra were recorded at Montana State University (MSU), Bozeman, USA, on a cryoprobe-equipped 600 MHz (14 T) AVANCE III solution NMR spectrometer housed in MSU's NMR Center. Funding for MSU NMR Center's NMR instruments has been provided in part by the National Institutes of Health Shared Instrumentation Grant program (Grant Nos.: 1S10RR13878 and 1S10RR026659), the National Science Foundation (Grant Nos: NSF-MRI:DBI-1532078 and NSF-MRI CHE 2018388), the Murdock Charitable Trust Foundation (Grant No.: 2015066:MNL), and support from the office of the Vice President for Research, Economic Development, and Graduate Education at MSU. Krzysztof Ossoliński: Investigation, Resources, Writing - Original draft preparation; Tomasz Ruman: Methodology, Resources, Data curation, Writing - Reviewing and Editing, Supervision; Valérie Copié: Resources, Data curation, Writing - Reviewing and Editing, Funding acquisition; Brian P. Tripet: Resources, Data curation, Writing - Reviewing and Editing, Visualization, Funding acquisition; Leonardo B. Nogueira: Resources, Investigation, Data curation; Writing - Original draft preparation; Katiane O.P.C. Nogueira: Data curation, Writing - Original draft preparation; Artur Kołodziej: Investigation, Data curation; Aneta Płaza-Altamer: Investigation; Anna Ossolińska: Resources; Tadeusz Ossoliński: Resources; Joanna Nizioł: Conceptualization, Methodology, Formal analysis, Investigation, Data curation, Writing - Original draft preparation, Reviewing and Editing, Visualization, Supervision, Project administration, Funding acquisition."