An Under Recognised Cause of Iatrogenic, Severe Metabolic Acidosis Irish Medical Journal Relationship of Dimethylglycine, Choline, and Betaine with Oxoproline in Plasma of Pregnant Women and Their Newborn Infants1,2 The Journal of Nutrition Refractory high anion gap metabolic acidosis due to chronic paracetamol use: a case report Journal of Medical Case Reports Springer Nature Link Figure 1 from Acetaminophen toxicity and 5 oxoproline (pyroglutamic acid): a tale of two cycles, one an ATP depleting futile cycle and the other a useful cycle. Semantic Scholar Acquired pyroglutamic acidaemia in a critically ill patient with chronic paracetamol use: A case report Lee Connolly, Ed Briggs, 2022