Ramnarain, D., Aupers, E., den Oudsten, B. L., Oldenbeuving, A., de Vries, J., & Pouwels, S. (2021). Post Intensive Care Syndrome (PICS): An overview of the definition, etiology, risk factors, and possible counseling and treatment strategies. Expert Review of Neurotherapeutics, 21(10), 1159-1177 .