evidence: - Norway: In 2005, 2.28% of induced abortions were performed between 13 and 16 weeks, 1.24% of abortions between 17 and 20 weeks, and 0.20% over 21 weeks.[29] Between February 15, 2010, and December 1, 2011, a total number of ten abortions were performed between 22 and 24 weeks. These have been declared illegal by The Norwegian Directorate of Health. Women who seek an abortion after the 12-week time limit must apply to a special medical assessment board – called an "abortion board" (Norwegian: abortnemnd or primærnemnd) – that will determine whether or not to grant them an abortion.[30] [...] 1.3% of abortions occur after 21 weeks of pregnancy in the US. Although it is very uncommon, women undergoing surgical abortion after this gestational age sometimes give birth to a fetus that may survive briefly.[55][56][57] The periviable period is considered to be between 20 and 25 weeks gestation.[58] Long-term survival is possible after 22 weeks.[59] However, odds of long-term survival between 22 and 23 weeks are 2–3 percent and odds of survival between 23 and 24 weeks are 20 percent.[60] "Intact survival", which means survival of a neonate without subsequent damage to organs such as the brain or bowel is 1% at 22 weeks and 13% at 23 weeks.[60] Survival odds increase with increasing gestational age.[60]