WAUSAU — Three of the four soldiers from a Wisconsin-based U.S. Army Reserves medical combat stress unit who were wounded in the Fort Hood, Texas, shooting have returned to duty, a military spokesman said Monday.

The only soldier still hospitalized was a woman in serious but stable condition, Army Reserve spokesman Scott Ferguson said in a telephone interview from Fort McPherson in Atlanta, home of the U.S. Army Reserve Command. No name was released.

The wounded were among 43 soldiers from the Madison-based 467th Medical Command Detachment who had arrived at Fort Hood for training last Wednesday, a day before the shooting that killed 13 and wounded 29, Ferguson said.

According to Ferguson, three of the dead were assigned to the Madison unit, including two who lived in Wisconsin — Staff Sgt. Amy Krueger, 29, of Kiel, and Capt. Russell Seager, 51, of Racine.

Ferguson said soldiers from three Army Reserve medical command detachments with specialties in combat stress were injured in Thursday's shooting, but the Madison unit suffered the most casualties. Detachment 1908 from Topeka, Kan., had two killed and three wounded and the 1493rd from Durham, N.C., had two wounded, he said.

Authorities say Maj. Nidal Malik Hasan fired more than 100 rounds at a soldier processing center before civilian police shot him in the torso. He was recovering Monday at an Army hospital in San Antonio in stable condition, authorities said.

The unit will be deploying to Afghanistan as planned, Ferguson said.