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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Most widely used spring-loaded surveyor is:
assistant
The correct answer is  The most widely used surveyors are the Ney and the Jelenko.
Both of these are precision made instruments.
They differ principally in that the Jelenko arm swivels, whereas the Ney arm is fixed.