Simple, fast and inexpensive quantification of glycolate in the urine of patients with primary hyperoxaluria type 1.

"Declarations Conflict of interestAll authors except CMH declare that they have no conflict of interest. CMH is a consultant for Novo Nordisk. Ethical approvalAll procedures were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2013. Informed consent was obtained from all patients and healthy volunteers. Consent to participateAll authors have agreed to this submission. Consent to publicationThis publication has been approved by all co-authors and by the responsible authorities of the respective universities and institutions. Conflict of interest All authors except CMH declare that they have no conflict of interest. CMH is a consultant for Novo Nordisk."

"Funding Open access funding provided by Medical University of Vienna. There are no funding sources."