Recurrence of low back pain is common: a prospective inception cohort study.

J Physiother. 2019 Jul;65(3):159-165. doi: 10.1016/j.jphys.2019.04.010. Epub 2019 Jun 14.

da Silva T,  Mills K,  Brown BT,  Pocovi N,  de Campos T,  Maher C,  Hancock MJ.

https://www.ncbi.nlm.nih.gov/pubmed/31208917