HOSSEINI NIK AMMAR, ABDEYAZDAN GHOLAM HOSSEIN and D.R HEIDAR ALI ABEDI 2022. EXPRESSION THE CONCEPT OF PAIN IN PATIENTS WITH SICKLE CELL ANEMIA (A QUALITATIVE STUDY): Life Sciences-Medical. International Journal of Life Science and Pharma Research. 7, 2 (Jul. 2022), 20–25.