Complex sentence: PXE has the distinction of being the only disease for which a layperson is the inventor of the gene, the "ABCC6" gene mutation was discovered by Dr. Klaus Lindpainter and Dr. Berthold Struk at Harvard University.
Split into simpler sentences: PXE has the distinction of being the only disease for which a layperson is the inventor of the gene. The "ABCC6" gene mutation was discovered by Dr. Klaus Lindpainter and Dr. Berthold Struk at Harvard University.