Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.

Q: Question: Does implementing goal-directed protocols reduce length of stay after cardiac surgery?
Answer: A milestone-driven pathway supported by team rounding was associated with decreased lengths of CVICU and hospital stay. However, tracking patient trajectories by milestones suggests a more complex relationship than anticipated and presents new opportunities for SREBP implementation and research.

A: yes
****
Q: Question: Are immunologic marker paths for seroconversion : single determinations of immunoglobulin A and beta 2-microglobulin adequate to estimate time of HIV infection . Multicohort Analysis Project Workshop . Part II?
Answer: Further study of how serum IgA reflects HIV infection and careful clinical and statistical assessment of reduced beta 2M from 5 or 6 years after HIV infection are needed. The dependence of marker paths on mode of HIV transmission suggests that sexual transmission may have implications for HIV disease progression. The feasibility of using serum IgA and beta 2M, evaluable in single stored blood samples, to estimate time of HIV infection has been set back by our results.

A: no
****
Q: Question: Do evolution of clinical features in possible DLB depending on FP-CIT SPECT result?
Answer: In patients with possible DLB, apart from UPDRS score, there was no difference in the evolution of DLB clinical features over 6 months between cases with normal and abnormal imaging. Only parkinsonism and dopamine transporter imaging helped to differentiate DLB from non-DLB dementia.

A:
yes
****