AU - Abolghasemian, Mansour AU - Ramezan Shirazi, Mehdi AU - Gharanizadeh, Kaveh AU - Yeganeh, Ali AU - Safir, Oleg AU - Gross, Allan Edward AU - Ghazavi, Mohammad Taghi TI - Factors Associated With the Course of Femoral Head Osteonecrosis; A Retrospective Study PT - JOURNAL ARTICLE TA - iums-jros JN - iums-jros VO - 2 VI - 2 IP - 2 4099 - http://jros.iums.ac.ir/article-1-150-en.html 4100 - http://jros.iums.ac.ir/article-1-150-en.pdf SO - iums-jros 2 ABĀ  - 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. CP - IRAN IN - Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran , IR Iran LG - eng PB - iums-jros PG - 0 PT - YR - 2015