Hantson, P., Renkin, J., Gautier, Ph. E., Vekemans, MC., Fievez, P., & Mahieu, P. (1992). Acute Myocardial-infarction in a Young Woman - Possible Relationship With Sustained-release Theophylline Acute Overdose. Intensive Care Medicine, 18(8), 496. https://doi.org/10.1007/BF01708590 (Original work published 1992)