Return to work after traumatic spinal fractures and spinal cord injuries: a retrospective cohort study oleh Fateme Keihanian, Enayatollah Homaie Rad, Simin Samadi Shal, Nooshin Pourreza, Leila Khoochakinejad Eramsadati, Seyedeh Mitra Hosseini Malekroudi, Naema Khodadadi-Hassankiadeh