Mixed messages: most spinal pain and osteoarthritis observational research is unclear or misaligned

- Gleadhill, Connor; Lee, Hopin; Kamper, Steven J.; Cashin, Aidan; Hansford, Harrison; Traeger, Adrian C.; Viana Da Silva, Priscilla; Nolan, Erin; Davidson, Simon R. E.; Wilczynska, Magdalena; Robson, Emma; Williams, Christopher M.