@article{Ho2017, author = "Kwo Ho and Rene Przkora and Sanjeev Kumar", title = "{Additional file 1: of Sphenopalatine ganglion: block, radiofrequency ablation and neurostimulation - a systematic review}", year = "2017", month = "12", url = "https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_of_Sphenopalatine_ganglion_block_radiofrequency_ablation_and_neurostimulation_-_a_systematic_review/5742957", doi = "10.6084/m9.figshare.5742957.v1" }