@misc{indiciae1499d8673b43, title = {Unexplained syncope evaluated by electrophysiologic studies and head-up tilt testing.}, author = {J S Sra and A J Anderson and S H Sheikh and B Avitall and P J Tchou and P J Troup and C J Gilbert and M Akhtar and M R Jazayeri}, year = {1991}, doi = {10.7326/0003-4819-114-12-1013}, url = {https://pubmed.ncbi.nlm.nih.gov/2029096/}, note = {Source identifier: 2029096} }