Complex sentence: It can be contrasted with anuria, which represents an absence of urine, clinically classified as below 50ml/day Boon et al, Davidson's Principles & Practice of Medicine (20th Ed), p475.
Split into simpler sentences: It can be contrasted with anuria, which represents an absence of urine. Clinicaly classified as below 50ml/day Boon et al, Davidson's Principles & Practice of Medicine (20th Ed), p475.