SPENCER GRANT / SCIENCE PHOTO LIBRARY SPENCER GRANT / SCIENCE PHOTO LIBRARY
A blood sample is taken on a purpose-designed form from the heel of a newborn infant for a PKU (Phenylketonuria) test at a California hospital. The mandatory test (for potential mental retardation and some life-threatening diseases) must be administered between 6 hours and 12 days of birth.
Model release not available. Property release not available.