Patients who had massages twice weekly for four weeks and once a week for an additional four weeks had less pain and stiffness and better range of motion than those who didn't get massages.

WSJ: Don't Call It Pampering: Massage Wants to Be Medicine

Martha's blog has been read by almost eight million people in four months, while her Brazilian counterpart's page has attracted over two hundred thousand followers in less than four weeks.

BBC: Scotland

That's worrying for supporters of the change, with the elections less than four weeks away.

BBC: Police officers

Her recovery time was about four to six weeks, but would likely have been less had she not just given birth, Basco-Yu said.

MSN: Heart disease can be serious, silent in young women

This combo stays in the body longer than interferon and thus can be injected less often, every two weeks and possibly every four weeks.

FORBES: Magazine Article

Another indicator of strengthening China and Asian markets is the Baltic Dry Index, up over 1, 000 in less than 48 hours, and rising from 663 four weeks ago.

FORBES: QE3 Having No Meaningful Impact On Asian Markets

We know from what we saw in Europe over the last four or five weeks that there were certain countries in Europe who were less than enthusiastic for what Tony Blair was doing.

BBC: News | BREAKFAST WITH FROST | Shadow Foreign Secretary Michael Ancram

Metta World Peace returned for the Lakers less than two weeks after undergoing left knee surgery and had four points in 15 minutes as they won their third in a row at home.

NPR: Lakers Beat Hornets 104-96 To Stay In Hunt

In the October survey the iPhone 5 had been out for less than three weeks and the Samsung Galaxy S III had been out for almost four months.

FORBES: Move up http://i.forbesimg.com t Move down

Smith suffered a punctured lung, four fractured ribs, a broken shoulder blade and a fractured arm riding for Elite League Ipswich Witches less than two weeks ago.

BBC: Smith thanks Stars' fans for cash