In this image taken from a video released by Luis Calvo Mackenna hospital, conjoined twins Maria Paz and Maria Jose Paredes Navarrete are seen prior to a surgery to separate them in Santiago, Chile, Tuesday, Dec. 13, 2011. Chilean doctors started a long and dangerous surgery to separate 10-months-old conjoined twins who are joined at the chest, stomach and pelvis. (AP Photo/Luis Calvo Mackenna Hospital)
Read the article: Chilean medical team separates conjoined twins in 18-hour surgery
