Health-care access and utilization among individuals with low back pain in Iran: a WHO-ILAR COPCORD study oleh Seyedeh Tahereh Faezi, Azarakhsh Baghdadi, Mohammad Nejadhosseinian, Maziar Moradi-Lakeh, Mir Saeed Yekaninejad, Kourosh Holakoui, Nasrin Moghimi, Mahnaz Sandoughi, Ali Dehghan, Arash Tehrani Banihashemi, Maryam Ghadimi, Fereydoun Davatchi