Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) PARRIS WCV,Use of stellate ganglion blocks for chronic chest pain associated with primary pulmonary hypertension,Anesth Analg,,,1988,67,,993-995,https://cir.nii.ac.jp/crid/1573105976155532928,https://doi.org/10.1213/00000539-198810000-00017