Which of the following does the World Health Organization's classification consider an MDS/MPN variant?

a. Polycythemia vera
b. Refractory anemia with ringed sideroblasts
c. Chronic myelogenous leukemia
d. Atypical chronic myeloid leukemia, BCR/ALB1-

Correct Answer: D

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Which of the following is false about viscosity?

a. The greater the viscosity, the greater is the opposition to flow. b. Viscosity is most important under condi-tions of turbulent flow. c. The stronger the cohesive forces, the greater the viscosity. d. Fluid viscosity is equivalent to friction between solids.

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Nonabsorbable sutures can be made of:

A) steel. B) silk. C) nylon. D) all of the above.

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