Massachusetts Pushes Fix for State Health Exchange

By ABBY GOODNOUGH

The board of the broken Massachusetts health insurance exchange voted to buy new software to help people enroll in coverage, while preparing to join the federal marketplace if necessary.

Called by Republicans, Health Insurers Deliver Unexpected Testimony

By ROBERT PEAR

Health insurance executives summoned to a House hearing Wednesday refused to go along with any G.O.P criticism of the health care law, undercutting some arguments against it.

Insurers Say Most Who Signed Up Under Health Law Have Paid Up

By ROBERT PEAR

About 80 percent of people who chose plans under the Affordable Care Act are paying initial premiums as required, several large insurers said.

The Upshot

Universal Mammograms Show We Don’t Understand Risk

By AARON E. CARROLL

Our perceptions on health matters repeatedly don’t line up with reality, making reducing health care spending very difficult.

The Consumer

A New Women’s Issue: Statins

By RONI CARYN RABIN

An increasingly vocal group of cardiologists argue that many women are taking the cholesterol-lowering medications unnecessarily.

Connecticut Allows Medical Marijuana, but Sellers Encounter Hurdles

By JOSEPH BERGER

The state passed a law approving the sale of marijuana for medical purposes in 2012, but applicants for dispensaries are having a hard time persuading localities to let them set up shop.

A Late Rush to Sign Up for Insurance

By ROBERT PEAR

In its final report on enrollment under the health law, the Obama administration says that the total exceeds eight million, thanks to a sharp increase in March.

The Upshot

Envisioning the End of Employer-Provided Health Plans

By NEIL IRWIN

A new study finds the new health care law could create big savings for companies.