Assertion: collagen's content | /r/HasProperty | chlorhexidine
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Source sentences:
text: Different types of collagen-based membranes have been tested for local drug delivery.28 A degradable controlled-release device based on formaldehyde cross-linked bycoprotein matrix containing chlorhexidine was described by Steinberg et al 1990.28 PerioCol® (Eucare Pharmaceuticals Private Limited, www.eucareindia.com) is the most commonly used collagenous membrane for local drug delivery system and has two contents: chlorhexidine and collagen.