Surgeons Prepare To Separate Conjoined Twin Toddlers

PALO ALTO, CA - OCTOBER 31: Conjoined twins Angelica (R) and Angelina Sabuco (L) play a game with their mother Ginady (C) during a press conference at the Lucile Packard Children's Hospital at Stanford on October 31, 2011 in Palo Alto, California. Two year-old conjoined twins Angelica and Angelina Subaco who are connected at the chest and abdomen are preparing for separation surgery by Dr. Gary Hartman. The surgery will last between 6 and 8 hours that is followed by three hours of reconstructive surgery for each girl. (Photo by Justin Sullivan/Getty Images)

Surgeons Prepare To Separate Conjoined Twin Toddlers

PALO ALTO, CA - OCTOBER 31: Conjoined twins Angelica (R) and Angelina Sabuco (L) play during a press conference at the Lucile Packard Children's Hospital at Stanford on October 31, 2011 in Palo Alto, California. Two year-old conjoined twins Angelica and Angelina Subaco who are connected at the chest and abdomen are preparing for separation surgery by Dr. Gary Hartman. The surgery will last between 6 and 8 hours that is followed by three hours of reconstructive surgery for each girl. (Photo by Justin Sullivan/Getty Images)

Surgeons Prepare To Separate Conjoined Twin Toddlers

PALO ALTO, CA - OCTOBER 31: Conjoined twins Angelica (L) and Angelina Sabuco (R) ride on a wheelchair with their mother Ginady (C) before a press conference at the Lucile Packard Children's Hospital at Stanford on October 31, 2011 in Palo Alto, California. Two year-old conjoined twins Angelica and Angelina Subaco who are connected at the chest and abdomen are preparing for separation surgery by Dr. Gary Hartman. The surgery will last between 6 and 8 hours that is followed by three hours of reconstructive surgery for each girl. (Photo by Justin Sullivan/Getty Images)

Surgeons Prepare To Separate Conjoined Twin Toddlers

PALO ALTO, CA - OCTOBER 31: Conjoined twins Angelica (2-R) and Angelina Sabuco (2-L) their mother Ginady (L) and child life specialist Allison Brooks during a press conference at the Lucile Packard Children's Hospital at Stanford on October 31, 2011 in Palo Alto, California. Two year-old conjoined twins Angelica and Angelina Subaco who are connected at the chest and abdomen are preparing for separation surgery by Dr. Gary Hartman. The surgery will last between 6 and 8 hours that is followed by three hours of reconstructive surgery for each girl. (Photo by Justin Sullivan/Getty Images)

Surgeons Prepare To Separate Conjoined Twin Toddlers

PALO ALTO, CA - OCTOBER 31: Conjoined twins Angelica (R) and Angelina Sabuco (L) play a game with their mother Ginady (C) during a press conference at the Lucile Packard Children's Hospital at Stanford on October 31, 2011 in Palo Alto, California. Two year-old conjoined twins Angelica and Angelina Subaco who are connected at the chest and abdomen are preparing for separation surgery by Dr. Gary Hartman. The surgery will last between 6 and 8 hours that is followed by three hours of reconstructive surgery for each girl. (Photo by Justin Sullivan/Getty Images)

Surgeons Prepare To Separate Conjoined Twin Toddlers

PALO ALTO, CA - OCTOBER 31: Conjoined twins Angelica (C) and Angelina Sabuco (L) play with child life specialist Allison Brooks during a press conference at the Lucile Packard Children's Hospital at Stanford on October 31, 2011 in Palo Alto, California. Two year-old conjoined twins Angelica and Angelina Subaco who are connected at the chest and abdomen are preparing for separation surgery by Dr. Gary Hartman. The surgery will last between 6 and 8 hours that is followed by three hours of reconstructive surgery for each girl. (Photo by Justin Sullivan/Getty Images)

Surgeons Prepare To Separate Conjoined Twin Toddlers

PALO ALTO, CA - OCTOBER 31: Conjoined twins Angelica (R) and Angelina Sabuco (L) play during a press conference at the Lucile Packard Children's Hospital at Stanford on October 31, 2011 in Palo Alto, California. Two year-old conjoined twins Angelica and Angelina Subaco who are connected at the chest and abdomen are preparing for separation surgery by Dr. Gary Hartman. The surgery will last between 6 and 8 hours that is followed by three hours of reconstructive surgery for each girl. (Photo by Justin Sullivan/Getty Images)

Angelica and Angelina Sabuco - Conjoined Twins

Just before heading to OR at Lucile Packard Children's Hospital

(Photo credit by Lucile Packard Children's Hospital)

Angelica and Angelina Sabuco - Conjoined Twins

Just before heading to OR at Lucile Packard Children's Hospital

(Photo credit by Lucile Packard Children's Hospital)

Angelica and Angelina Sabuco - Conjoined Twins

Just before heading to OR at Lucile Packard Children's Hospital

(Photo credit by Lucile Packard Children's Hospital)

Surgical Team In Action - Lucile Packard Children's Hospital

Conjoined twins surgical team in action during Nov. 1 separation surgery

(Photo credit by Lucile Packard Children's Hospital)

Surgical Team In Action - Lucile Packard Children's Hospital

Conjoined twins surgical team in action during Nov. 1 separation surgery

(Photo credit by Lucile Packard Children's Hospital)

Surgical Team In Action - Lucile Packard Children's Hospital

Conjoined twins surgical team in action during Nov. 1 separation surgery

(Photo credit by Lucile Packard Children's Hospital)

Surgical Team In Action - Lucile Packard Children's Hospital

Conjoined twins surgical team in action during Nov. 1 separation surgery

(Photo credit by Lucile Packard Children's Hospital)