ElvingLDBakkerenJAJMJansenMJHAngelinoCMNobelEMunsterPJJ. Screening for microalbuminuria in patients with diabetes mellitus: frozen storage of urine samples decreases their albumin content. Clin Chem1989; 35: 308–10
2.
ShieldJPHHuntLPMorganJEPenmockCA. Are frozen urine samples acceptable for estimating albumin excretion in research?Diabetic Med1995; 12: 713–6
3.
OsbergIChaseHPGargSKDeAndreaAHarrisSHamiltonR. Effects of storage time and temperature on measurement of small concentrations of albumin in urine. Clin Chem1990; 36: 1428–30
4.
CollinsACGSethiMMacDonaldFABrownDVibertiGC. Storage temperature in the measurement of urinary albumin. Diabetologia1993; 36: 993–7
5.
GiampietroOPennoGClericoACruschelliLCecereM. How and how long to store urine samples before albumin radioimmunoasay: a practical response. Clin Chem1993; 39, 533–6
6.
Microalbuminuria Collaborative Study Group.Risk factors for development of microalbuminuria in insulin-dependent diabetic patients: a cohort study. BMJ1993; 306: 1235–9