Comment on

• Detection of microemboli in patients with artificial heart valves using transcranial Doppler: preliminary observations.

  Rams JJ, Davis DA, Lolley DM, Berger MP, Spencer M. Rams JJ, et al. J Heart Valve Dis. 1993 Jan;2(1):37-41. J Heart Valve Dis. 1993. PMID: 7903588
• Hypercoagulability in the left atrium: Part I: Echocardiography.

  Beppu S. Beppu S. J Heart Valve Dis. 1993 Jan;2(1):18-24. J Heart Valve Dis. 1993. PMID: 8269107 Review.
• Hypercoagulability in the left atrium: Part II: Coagulation factors.

  Yasaka M, Beppu S. Yasaka M, et al. J Heart Valve Dis. 1993 Jan;2(1):25-34; discussion 35-6. J Heart Valve Dis. 1993. PMID: 8269108 Review.
• International standardization of laboratory control of oral anticoagulant therapy: a survey of thromboplastin reagents used for prothrombin time testing.

  van den Besselaar AM. van den Besselaar AM. J Heart Valve Dis. 1993 Jan;2(1):42-52. J Heart Valve Dis. 1993. PMID: 8269109 Review.
• The pharmacology of oral anticoagulants: implications for therapy.

  Shetty HG, Woods F, Routledge PA. Shetty HG, et al. J Heart Valve Dis. 1993 Jan;2(1):53-62. J Heart Valve Dis. 1993. PMID: 8269110 Review.
• The investigation of a heart valve patient with suspected hypercoagulability.

  Gough SC, Prentice CR. Gough SC, et al. J Heart Valve Dis. 1993 Jan;2(1):7-17. J Heart Valve Dis. 1993. PMID: 8269113 Review.