A couple of weeks ago Wake Forest University physicians described the first human recipients of a laboratory-grown organ. In the prestigious medical journal "The Lancet," Dr. Anthony Atala, director of the Institute for Regenerative Medicine, detailed a series of patients (children and teenagers) who received urinary bladders grown from their own cells. WHAAAAT? Did somebody say "laboratory organs?!" Yes. Perhaps like you, the first reaction of some who heard the news was, “why would anyone need a new bladder?” Well, many infants are born with congenital birth defects a very serous one is spina bifida (incomplete closure of the spine)....