TY - JOUR T1 - Ultrasound-guided interfascial blocks of the trapezius muscle for cervicogenic headache: A report of two cases AU - Arıcı, Tulin Y1 - 2021 PY - 2021 DA - 2021 N1 - doi: 10.14744/agri.2020.08831 DO - 10.14744/agri.2020.08831 T2 - Agri JF - Agri JO - Ağrı SP - 278 EP - 281 VL - 33 IS - 4 SN - M3 - PMID: 34671952 UR - https://dx.doi.org/10.14744/agri.2020.08831 Y2 - 2021 ER -