Use of intermediate cervical plexus block in carotid endarterectomy –an alternative to deep cervical plexus block: a case series. - Ratnayake, Ashani; Abeysundara, Anura; Samarasinghe, Bandula; Rathnayake, Jeewantha; Samarasinghe, Senani; Perera, Rochana; Bandara, Chamoda (BMC Anesthesiology, 2024)