Assertion: leaf collimator | /r/HasProperty | clinac
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Source sentences:
text: Several refurbished MLC options are available from Radiation Oncology Systems, including: Varian multi-leaf collimators: Clinac, 600C/D, 6EX, 2100C/D, 21EX, DHX, and iX linear accelerators, including Millennium 80MLC and Millennium 120MLC.