title: Acute low back pain: is the number of patients taking sick leave exponentially related to time?
mesh_terms: D000041:Absenteeism; D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D003718:Denmark / Q000453:epidemiology; D005194:Family Practice; D005500:Follow-Up Studies; D006801:Humans; D017116:Low Back Pain / Q000453:epidemiology*; D008875:Middle Aged; D013997:Time Factors