Petrov, S., Orbetzova, M., Iliev, Y., Boyadzhiev, D. Chronic Treatment with Opiate Agonists in Bulgaria - Assessing the Quality of Life Using SF 36 v. 2. Plovdiv: 2016 115-120,.
Petrov, S., Orbetzova, M., Iliev, Y., Boyadzhiev, D. Chronic Treatment with Opiate Agonists in Bulgaria - Assessing the Quality of Life Using SF 36 v. 2. Plovdiv: 2016 115-120,.
Petrov, S., Orbetzova, M., Iliev, Y., Boyadzhiev, D. (2016) Chronic Treatment with Opiate Agonists in Bulgaria - Assessing the Quality of Life Using SF 36 v. 2, Plovdiv: 115-120,.
Petrov, S., Orbetzova, M., Iliev, Y., & Boyadzhiev, D. (2016). Chronic Treatment with Opiate Agonists in Bulgaria - Assessing the Quality of Life Using SF 36 v. 2. Plovdiv: 115-120.
Petrov S, Orbetzova M, Iliev Y, Boyadzhiev D. Chronic Treatment with Opiate Agonists in Bulgaria - Assessing the Quality of Life Using SF 36 v. 2. Plovdiv: 2016. p. 115-120.