The cylindrical cone that indicates the direction of the central beam of radiation is also called the
CMID.
PID.
CID.
MID.
PID.
Rationale: The PID, also called the position indicating device, is the long, tubular device that is attached to the end of the tubehead where the primary beam is emitted.
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The C/c antigens arise from a single amino acid difference at position
a. 103 b. 215 c. 226 d. 302
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In which of the following stages is the B-cell found?
A) Initial and early B) Early and established C) Established and advanced D) Initial and advanced E) Early and advanced
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