PRESENCE OF MULTIMORBIDITY AMONG ADULTS WITH CHRONIC BACK PAIN IN BRAZIL, NATIONAL HEALTH SURVEY 2019 Érica de Matos Reis Ferreira; Thaís Cristina Marquezine Caldeira; Déborah Carvalho Malta; Edmar Geraldo Ribeiro; Rafael Zambelli Pinto;

Prevalence of non-communicable diseases, multimorbidity, and their impact on activity limitations among adults with chronic back pain: a national population-based study in a middle-income country Érica de Matos Reis Ferreira; Ítalo Ribeiro Lemes; Edmar Geraldo Ribeiro; Deborah Carvalho Malta; Christopher G. Maher; James H. McAuley; Matthew D. Jones; Luiz Hespanhol; Rafael Zambelli Pinto;

Referral of people with low back pain to physical therapists in Brazilian primary healthcare: A challenge revealed Tais Luciana Lacerda; Pedro Lacerda Montes; Luciana Gazzi Macedo; Raymond Ostelo; Henry Maia Peixoto; Rodrigo Luiz Carregaro;