Christensen, K. B., Andersen, P. K., DrMedSci, Hansen, L. S., BaTechnSoc, Nielsen, M. L., Kristensen, T. S., & DrMedSci (2007). Analyzing Sickness Absence with Statistical Models for Survival Data. Scandinavian Journal of Work, Environment & Health, 33(3), 233-239. https://www.airitilibrary.com/Article/Detail?DocID=03553140-200701-201011040113-201011040113-233-239