Answers are grounded in this paper and cite their sources.
Irene S Forrest, Fred M Forrest; Supplement to Urine Color Test for the Detection of Phenothiazine Compounds, Clinical Chemistry, Volume 6, Issue 4, 1 Augu
No takes yet. Share an insight, caveat, or question.
Forrest et al. (1960) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: