TY - JOUR T1 - Factors Associated With the Course of Femoral Head Osteonecrosis; A Retrospective Study TT - JF - iums-jros JO - iums-jros VL - 2 IS - 2 UR - http://jros.iums.ac.ir/article-1-150-en.html Y1 - 2015 SP - 0 EP - 0 KW - Hip KW - avascular necrosis KW - Smoking N2 - Background: An increased incidence of osteonecrosis of the femoral head (ONFH) has recently been observed in Iran, likely associated with the introduction of an illegal, steroid-containing opioid drug, Temgesic. The correlation of risk factors associated with the course of ONFH has yet to be determined. M3 10.17795/soj-1779 ER -