Cars whizzed by at 45 miles an hour, honking at the two-foot-wide biped awkwardly blocking their lane.

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About two-thirds of tumors have estrogen receptors that make them vulnerable to hormone-blocking medications.

WSJ: Can Breast Cancer Be Overtreated?

The older drugs work by blocking two related enzymes called Cox-1 and Cox-2.

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The opposition insists a two-thirds vote is needed, which would give it blocking power.

ECONOMIST: The opposition takes on Morales

In 2003 British researchers tested Amgen's interleukin-blocking rheumatoid arthritis drug, Kineret, in two Muckle-Wells patients who had not been helped by other drugs.

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The problem is that, without full-backs charging forward to provide support, too often they find two men blocking their way to goal and attacks peter out.

BBC: Celtic's away-day blues

Gloucestershire's two main hospitals are failing to meet their own targets over so-called bed-blocking, a report has found.

BBC: Gloucestershire hospitals failing over 'bed-blocking'

Democrats in the Senate inched closer to an agreement on health care, taking up the two biggest hurdles blocking overhaul legislation from a final vote: abortion and a government-sponsored public option.

NPR: Senators Announce Tentative Deal On Public Option

Trains have not been stopping at Barrow-upon-Soar after a freight train carrying stone overturned on 27 December, blocking two rail lines.

BBC: Barrow-upon-Soar rail service 'normal' by Monday

If we lived in a world with only two cell phone providers who were trying to merge to become a monopoly, blocking that merger would be a no-brainer.

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