00524nas a2200217   4500000000100000008004100001260001300042653001100055653002200066653001100088653001300099653001200112653001100124100001200135245007300147856004100220300001100261490000700272050001300279022001400292       1987                            d  c1987 Jun10aEurope10aHistory, Medieval10aHumans10aImmunity10aleprosy10aPlague1 aEll S R00aPlague and leprosy in the Middle Ages: a paradoxical cross-immunity?  uhttp://ila.ilsl.br/pdfs/v55n2a15.pdf  a345-500 v55  aELL 1987  a0148-916X