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Patients suffered no additional harm when doctors training to be surgeons were allowed to work longer shifts, a study published Tuesday concludes. The findings provide fresh evidence for medical educators looking to relax the strictest limits on resident hours.

Coin tosses, a squeaker of a win and, perhaps even more surprising, humility. That's what marked Monday night's Iowa caucuses, the first votes cast in the 2016 presidential election.

The presidential candidates are now focused on New Hampshire, where polls put Bernie Sanders ahead of Hillary Clinton and Donald Trump ahead of Ted Cruz, the Union Leader reports. The New Hampshire primaries will be held next Tuesday, Feb. 9.

Here's a roundup of headlines from the morning after the Iowa campaign.

Few States Use Health Law Option For Low-Cost Plans

Feb 2, 2016

In January, more than 350,000 New Yorkers began paying $20 a month or less for comprehensive health insurance with no deductibles and low copayments, for a type of coverage made possible by the federal health law. Minnesota has similar coverage in place through the same option, with more than 125,000 enrollees.

A crowd gathered at Gobbler's Knob early this morning, awaiting the emergence of the groundhog named Punxsutawney Phil. After a tap of a cane on Phil's tree-trunk cage, his door was opened, and the animal emerged.

Police have arrested three teenagers — ages 13, 16, and 17 — who are believed to have carried out last week's deadly attack on a homeless camp in Seattle known as "The Jungle." Two people were killed in the shooting; three more were hospitalized.

Last week, the authorities said they believed the victims were targeted; today, the AP reports that the police think the crime "stemmed from a drug-dealing dispute."

Donald Trump thought he could upend Iowa caucus traditions. The gamble didn't pay off.

Hillary Clinton hoped she could wipe away her campaign nightmares of eight years ago by posting a solid win over an insurgent Bernie Sanders.

Instead, her margin of victory over Sanders was vanishingly small.

Those were just some of the surprise twists from Monday night's results. Here's what the numbers and results tell us about how and why they happened, according to our analysis of the entrance/exit polling and the county-by-county results.

Iowa has once again proved its perennial resistance to political inevitability and the power of personality.

In this year's iteration of the Iowa caucuses, national polling leaders Donald Trump and Hillary Clinton had their campaign momentum slowed in significant ways by party activists who preferred their rivals.

A big win in Iowa might have set either leader on the path to a relatively easy nomination. But that was not to be, and now both Trump and Clinton face difficult and perhaps protracted struggles to overcome rivals they had hoped to dismiss.

Last October, China ended its 35-year-old policy of restricting most urban families to one child. Commonly referred to as the "one-child" policy, the restrictions were actually a collection of rules that governed how many children married couples could have.

"The basic idea was to encourage everybody, by coercion if necessary, to keep to ... one child," journalist Mei Fong tells Fresh Air's Terry Gross.

Back in the early 1960s, Philip Roth wrote a famous essay declaring that modern American life had gotten so delirious that it dwarfed fiction's ability to match it. Never did his words seem truer than in 1994, when O.J. Simpson — football god, mediocre movie actor and amiable pitchman for Hertz — was charged with butchering his wife, Nicole Brown Simpson, and her friend Ronald Goldman.

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Resounds: Neltje

The artist known as Neltje was born Neltje Doubleday, daughter of Nelson Doubleday of Doubleday Publishing. Neltje's recent memoir, North of Crazy , is a passionate, compelling, and frank chronicling of an extraordinary life, from her parents' alcoholism and near-abandonment in childhood to finding peace as an abstract expressionist painter living and working in northern Wyoming.

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