Stefano Di Bartolomeo; Chiara Ventura; Massimiliano Marino; Francesca Valent; Susanna Trombetti; Rossana De Palma. (2011). The counterintuitive effect of multiple injuries in severity scoring: a simple variable improves the predictive ability of NISS. , 19(1), 26–0.
doi:10.1186/1757-7241-19-26