A Special Report on IMS Health's (formerly SDI) 13th annual ranking of the top 100 integrated healthcare networks. Source: IMS Health. Published Jan. 23, 2012, p. 29.

A list of healthcare's 20 best performing U.S. healthcare stocks in 2011, ranked by total stock return through Dec. 31. Source: Russell Indexes. Published Jan. 9, 2012, p. 32.

Modern Healthcare's 13th annual resource guide filled with statistics, rankings and financial figures that shape the healthcare industry. Published Dec. 19, 2011.

A list of the nation's 25 largest academic medical centers, ranked by the total number of residents and interns based on Medicare cost report figures, 2010. Source: American Hospital Directory. Published: Jan. 23, 2012, p. 32.

A list of the 20 largest U.S. healthcare mergers and acquisitions announced in 2011, ranked by deal's price. Source: Irving Levin Associates. Published Jan. 30, 2012, p. 40.

A Special Report on 92 U.S. hospital mergers and acquisitions in 2011. This seven-page package provides a break down of deals in all available states. Source: Modern Healthcare reporting. Published Jan. 30, 2012, p. S2.

A PDF copy of the January 30, 2012 issue of Modern Healthcare

A list of healthcare's 20 most frequently billed Medicare DRGs, ranked by 2010 Medicare patient discharges. Source: Thomson Reuters. Published Jan. 2, 2012, p. 33.

Thomson Reuters' fourth annual study of health systems, part of its 100 Top Hospitals programs. Information sources include two public databases: Medicare Provider Analysis and Review, or MedPAR, and the CMS' Hospital Compare. Source: Thomson Reuters. Published Jan. 16, 2012, p. 30.