Answers are grounded in this paper and cite their sources.
F Ehrig, S Waller, M Misra, Z J Twardowski; A case of 'green urine'., Nephrology Dialysis Transplantation, Volume 14, Issue 1, 1 January 1999, Pages 190–192, ht
No takes yet. Share an insight, caveat, or question.
F Ehrig (1999) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: