Two new studies, led by US Forest Service researchers, took a closer look at urban green space in Philadelphia, Baltimore and Youngstown, Ohio.

美国林务局研究员做的两项最新研究仔细调查了费城、巴尔的摩和俄亥俄州扬斯敦的市区绿化情况。

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And so is the Baltimore and Ohio Railroad Museum.

VOA: special.2011.03.07

Workers with the Baltimore and Ohio railroad protested.

VOA: special.2010.03.11

The hospital recently began a pilot study with eight other medical centers, including Johns Hopkins in Baltimore and Ohio State University, to evaluate how to improve nutrition and what cancer patients think about food.

WSJ: New Hospital Cuisine: Dishes Made to Order

In the ensuing three years, the HOPI program counseled more than 4, 000 people, prevented 1, 300 foreclosures, and reclaimed 300 buildings.2 HOPI has also been a model for foreclosure prevention programs now operating around the country, including in Baltimore and Atlanta and in Ohio.

NPR: Transcript: Bernanke on Mortgages, Foreclosures

Forgive the fan who confuses the matchup between the Baltimore offense and the San Francisco defense with an Ohio State-Michigan game from the 1970s.

WSJ: Viewer's Guide: Three Ways to Watch the Super Bowl