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Liposomes as contrast agents for ultrasonic imaging and methods for preparing the same

  • US 5,230,882 A
  • Filed: 01/08/1992
  • Issued: 07/27/1993
  • Est. Priority Date: 12/22/1989
  • Status: Expired due to Term
First Claim
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1. A contrast agent for ultrasonic imaging which comprises a liposome having encapsulated therein a photo-activated gaseous precursor.

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