title: Proper assessment of free corticosteroid excretion in human urine depends not only on the use of a reproducible analytical method but also on the attention that urine volume may be an important pre-analytical parameter: a comment on the work of Al Sharef and co-workers.
authors.forename: Martin
authors.initials: M
authors.lastname: Fenske
mesh_terms: D003348:Cortisone / Q000652:urine*; D005240:Feasibility Studies; D006801:Humans; D006854:Hydrocortisone / Q000652:urine*; D007671:Kidney Concentrating Ability / Q000502:physiology; D015203:Reproducibility of Results; D014556:Urine / Q000737:chemistry*
chemical_list: D003348:Cortisone; D006854:Hydrocortisone