In December 2007, the European Society of Intensive Care Medicine established a Task Force to develop standard operating procedures (SOPs) for operating intensive care units (ICU) during an influenza epidemic or mass disaster.
Leermakers, R. (1993). Attribute Grammars. In The Functional Treatment of Parsing (pp. 91–113). Springer US. https://doi.org/10.1007/978-1-4615-3186-9_8