Q. Where to get daily total returns data for the S&P 500?
A. CRSP database. View Quarterly Updates -- Index / S&P 500 Indexes -- Index File on S&P 500. It has value-weighted returns, equal-weighted returns, and returns on the S&P composite index.

Q. How to find a list of integrated care delivery systems?
A. See Healthcare Business Market Research Handbook.

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