The principle of double effect.
Devine
Philip E
PE
D000028:Abortion, Induced; D002410:Catholicism; D034723:Double Effect Principle; D028663:Ethical Theory; D004989:Ethics; D005065:Euthanasia; D005333:Fetus; D006708:Homicide; D006801:Humans; D033182:Intention; D009042:Motivation; D035761:Wedge Argument