{Reference Type}: Letter {Title}: Double Stent Retriever Mechanical Embolectomy of a Refractory Onyx Embolus in the Basilar Artery. {Author}: Zhang X;Zhao G;Jiang C;Chen Z; {Journal}: J Vasc Interv Radiol {Volume}: 33 {Issue}: 11 {Year}: 11 2022 {Factor}: 3.682 {DOI}: 10.1016/j.jvir.2022.07.005 {Abstract}: