During normal childbirth, delivery trauma or complications during pregnancy, blood from a fetus can enter the mother's system.

"Well, Madame Restell says that with proper rest, and a new concoction-to be taken every day, to relax the muscles, or whatever-Denise can have a normal childbirth."

Instead, the source was umbilical cord blood, a byproduct of normal childbirth that is rich in stem cells that are more adaptable than those in bone marrow.

Examples include a 1996 federal law that requires insurers to cover two days in the hospital for a normal childbirth, and state laws requiring insurers to cover chiropractic care.

Deformities of the female pelvis related to severe rickets impair normal childbirth, which leads to higher mortality of the infant, mother, or both.

We could clone like them, no law against it, if we wanted a son or daughter identical to us, or fusion-clone like Teresa and Ami, if some biological technicality made normal childbirth impossible.

The abortion debate asks whether it can be morally right to terminate a pregnancy before normal childbirth.