TY - BOOK AU - Röhl John C G AU - Warren Martin AU - Hunt David TI - Purple secret: genes, 'madness' and the royal houses of Europe SN - 0552145505 AV - W3 U1 - 616.3/99 PY - 1999/// CY - [England] PB - Corgi Books KW - Porphyria KW - Genetic aspects KW - Royal houses N1 - Includes bibliographical references (p. 342-[397]) and index ER -