RT Journal Article SR Electronic T1 Does medical mystery threaten biotech? JF Science JO Science FD American Association for the Advancement of Science SP 619 OP 619 DO 10.1126/science.2237411 VO 250 IS 4981 A1 Raphals, P YR 1990 UL http://science.sciencemag.org/content/250/4981/619.abstract AB