Result(1) nucleic acid(1) postoperative(1) scale(1) Admission(1) propensity score matching(1) Aneurysm(1) protocol(1) no statistical difference(1) Craniotomy clipping(1) Operating room(1) required(1) adverse event(1) management protocol(1) false-negative rate(1) COVID-19 epidemic(1) subarachnoid hemorrhage(1) individual(1) Aneurysmal subarachnoid hemorrhage(1) Intervention(1) performed(1) Epidemic(1) prognosis of patient(1) incidence(1) PSM(1) protocols(1) two groups(1) Hospitalized(1) Undetermined(1) Wuhan, China(1)