Impairment of neck and shoulder function after neck dissection: a comparative study of goniometry, EMG and paper pencil tool in a randomized controlled trial of level IIb preserving verses conventional neck dissection. - Karthikeyan, Senniappan; Joshi, Deepika; Pathak, Abhishek; Pandey, Manoj (World Journal of Surgical Oncology, 2025)