; and (ii) excludes any such individual who is acting within the scope of employment with, self-employment as or with, or volunteer service for, an abortion center. (B) Abortion center For purposes of subparagraph (A)(ii), the term abortion center — (i) means any entity for which at least one percent of its gross receipts are from performing abortions (including the use or prescription of any abortion-inducing drug, but excluding any procedure that is necessary to prevent the death of a pregnant mother whose life is endangered by a physical disorder, physical illness, or physical injury, including a life-endangering physical condition caused by or arising from the pregnancy itself, so long as every reasonable effort is made to preserve the lives of both the pregnant mother and her unborn child); (ii) includes the entire legal entity described in clause (i), including any entity that controls, is controlled by, or is under common control with, such legal entity; and (iii) excludes any hospital (as defined in section 1861(e) of the Social Security Act). (3) Stillbirth The term stillbirth means the involuntary death of an unborn child who was carried in the womb for 20 weeks or more. (4) Unborn child The term unborn child means an individual of the species homo sapiens, from the beginning of the biological development of that individual, including fertilization, until the point of the earlier of being born alive (as defined in section 8(b) of title 1, United States Code) or death. .