%0 Journal Article %T Focus Group Study Exploring Factors Related to Frequent Sickness Absence %A Annette Notenbomer %A Corn¨¦ A. M. Roelen %A Johan W. Groothoff %A Willem van Rhenen %J Archive of "PLoS ONE". %D 2016 %R 10.1371/journal.pone.0148647 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4752269/