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Christopher Thomas Scott

oversight, both at the bench and in the clinic. At Stanford and in other California institutions engaged in stem cell research, stem cell research oversight (SCRO) committees use separate but overlapping sets of guidelines and regulations from 3 sources: the National Academy of Sciences, the California Institute of Regenerative Medicine, and California law. These regulations join out-of-state and international legislation that must be evaluated in light of harmonization with local law. 8 , 23 In California, any bench research using stem cells—adult or embryonic

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Brian Dickson

I have the honor of coming before you as the Cushing orator. Perhaps it is wishful thinking on my part, but I like to imagine that Harvey Cushing would have accepted your selection of me as the one to deliver this year's Oration. Dr. Cushing took a serious interest in ethical questions. 1 * Ethics and law are inextricably bound. Dr. Cushing also worked closely with Sir William Osler, a truly great Canadian; for his biography of Osler, 2 Dr. Cushing won the Pulitzer Prize. Dr. Cushing was a man of wide interests, perhaps even sufficiently wide to tolerate

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Everett J. Austin and Ellsworth C. Alvord Jr.

reviewed, with current follow-up data on 31. Although our findings support the long survival periods generally reported, we have been impressed by a surprisingly high incidence of recurrence. 3 Some tumors recur early but some quite late — well beyond the time one would have predicted according to Collins' Law. 11 This proposition states that a patient can be considered cured of his neoplasm if he has survived treatment without evidence of disease for a follow-up period of 9 months plus his age at diagnosis. The assumptions underlying this Law are: 1) that the tumor

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Garrett T. Venable, Brandon A. Shepherd, Christopher M. Loftis, S. Gray McClatchy, Mallory L. Roberts, Meghan E. Fillinger, James B. Tansey and Paul Klimo Jr.

subject based on the distribution of references. 3 Bradford discovered that when equally dividing all references in a given subject into 3 groups, or zones, the citations for the first zone would come from a small “core” group of journals. The second zone would require more journals to achieve the same number of citations, and the third zone exponentially more than the second. In moving from Zone 1 to Zone 3 there is a “diminishing productivity” described by Bradford, which has become known as Bradford’s law of scattering, or Bradford’s distribution. Figure 1 depicts

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Christopher M. Spearman, Madeline J. Quigley, Matthew R. Quigley and Jack E. Wilberger

fields or even medical specialties is not valid due to the widely disparate number of investigators in each field. The long-tail appearance of the frequency distribution in association with an exponential cumulative frequency curve suggested to us that the h index distribution within a population may conform to a power law. Power-law distributions are frequently encountered empirical relationships in which large events are rare but smaller ones common, such as earthquakes. 5 These relationships have been described for such varied things as the frequency

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J. Grafton Love

B efore beginning my presidential address, I should like to express to the members of the Harvey Cushing Society my sincere thanks for the impressive honor you have conferred upon me and, by reflection, upon the institution I represent. I am additionally indebted to you for this opportunity to speak to you about some questions which seem to me of prime importance to our society, to the specialty of neurosurgery and certainly to the public and our relations with the public in the light of both the law and our destinies as neurosurgeons. What I have to say may

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Nicolas W. Villelli, Hong Yan, Jian Zou and Nicholas M. Barbaro

W ith the passage of the Affordable Care Act (ACA) in 2009, significant debate has developed as to the financial implications of this policy. This bill has many similarities to the Massachusetts health care reform law of 2006, including subsidies for lower-income families, individual and business mandates, and state-based exchanges. 1 Because of these parallels, prior research has used Massachusetts as a predictor of the ACA’s impact on the future of the US health care system. 3 , 5 , 8 , 10 Our prior analysis showed that neurosurgical procedure volume and

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John A. Kusske

The practice of neurosurgery has been complicated over the last 25 years by the enactment of a series of statutes that have significantly altered the time-honored means by which neurosurgeons manage their work. These laws deal with issues that neurosurgeons have not customarily had to consider. The author outlines some of the socioeconomic and political matters that led to the passage of these statutes. An assortment of the laws is then surveyed, to foster an appreciation for the variety and depth of health care law that affects neurosurgeons' practice and the delivery of care to their patients. Statutes discussed include the fraud and abuse laws, self-referral laws, the Emergency Medical Treatment and Labor Act, Health Insurance Portability and Accountability Act, and Employee Retirement Income Security Act.