LETTER TO THE EDITOR

Unexpected severe incident vertebral fractures in patients with systemic lupus erythematosus: comment on the article by Zhu et al. Sir, We read with great interest the article by Zhu and colleagues about the incidence of and risk fac-tors for clinical non-vertebral and radiological ver-tebral fractures (VFs) in Chinese women with systemic lupus erythematosus (SLE) published recently in Lupus.1 We would like to compliment the authors with their prospective cohort study on this important subject. Earlier prospective studies were focused on incident symptomatic fractures in SLE. However, studies focusing on symptomatic VF