The use of formaldehyde as a preservative in the microscopic examination of urine sediment.
D004847:Epithelial Cells; D004912:Erythrocytes / Q000166:cytology; D005557:Formaldehyde; D006801:Humans; D007962:Leukocytes / Q000166:cytology; D011309:Preservation, Biological; D014556:Urine / Q000166:cytology*
D005557:Formaldehyde