• blood
  • According to the records of the Los Angeles County Hospital for 1945-1954, 1,002 persons were admitted during that period with diagnoses of "cardiovascular syphilis," "blood vessel syphilis" and/or "aneurysm of thoracic aorta. (annals.org)
  • Nontreponemal test refers an indirect method of blood test for diagnosis of infection with syphilis. (wikipedia.org)