It was not until Henry Ford's gas-powered Model T that the internal combustion engine and the car became inseparable.

VOA: special.2010.11.17

A million charities and foundations are recognized as tax-exempt organizations by the Internal Revenue Service.

VOA: special.2009.11.02

The journal editors say, "If internal and international migrants comprised a nation, it would be the third most populous country in the world,just after China and India."

VOA: special.2011.07.06

The findings are published in the Journal of General Internal Medicine.

VOA: special.2010.06.16

The new guidelines appear in the Annals of Internal Medicine.

VOA: special.2009.11.18

The study is published in the Archives of Internal Medicine.

VOA: special.2011.07.27

It appears in the Annals of Internal Medicine.

VOA: special.2010.01.13

Iran's Supreme Leader Ayatollah Ali Khamenei is again lashing out at the West for allegedly meddling in Iran's internal affairs.

VOA: standard.2009.07.20

(Sound) He says North Korea is doing this for its own internal purposes of maintaining its ballistic missile capability.

VOA: standard.2009.10.13

Washington has praised the military operation and is leading the international relief assistance to rehabilitate the internal refugees.

VOA: standard.2009.07.26

He accused the high commissioners, or ambassadors,from New Zealand and Australia of meddling in his country's internal affairs and ordered them to leave.

VOA: standard.2009.11.04

It has experienced internal divisions and rising tensions in the past year, as major political parties struggle to agree on a basic political structure.

VOA: standard.2009.10.15

America's top tax official, Internal Revenue Service Commissioner Doug Shulman hailed the accord on Bloomberg television.

VOA: standard.2009.08.19

But he warned that Iran continues to have a "very malevolent relationship" with Iraq, including meddling in internal Iraqi politics and supplying weapons to insurgents.

VOA: standard.2009.09.10