People who say it better than I can - 2002 version

Stroke. 2002 Jul;33(7):1851-6. 

Association between subarachnoid hemorrhage outcomes and number of cases treated at California hospitals.

Bardach NS, Zhao S, Gress DR, Lawton MT, Johnston SC.

School of Medicine, University of California, San Francisco, CA 94143-0114, USA.

 "CONCLUSIONS: In this study of discharge abstracts in California, hospitals that treated more cases of subarachnoid hemorrhage had substantially lower rates of in-hospital mortality. Few patients with subarachnoid hemorrhage are being transferred to high-volume centers."