instruction:
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.
question:
Question: Does mR Elastography demonstrate Increased Brain Stiffness in Normal Pressure Hydrocephalus?
Answer: This study demonstrates increased brain stiffness in patients with normal pressure hydrocephalus compared with age- and sex-matched healthy controls; these findings should motivate future studies investigating the use of MR elastography for this condition and the efficacy of shunt therapy.
answer:
yes

question:
Question: Does catecholamine release induce elevation in plasma lactate levels in patients undergoing adrenalectomy for pheochromocytoma?
Answer: Catecholamine release caused by surgical manipulation may be a possible cause of intraoperative transient lactic acidosis, and it should be considered as a differential diagnosis of intraoperative lactic acidosis. Intraoperative peak plasma lactate level was correlated with preoperative epinephrine-releasing activity.
answer:
yes

question:
Question: Does early adrenaline administration improve circulatory recovery during resuscitation from severe asphyxia in newborn piglets?
Answer: The high endogenous catecholamine levels, especially those of noradrenaline, may explain why early administered adrenaline did not significantly improve resuscitation outcome.
answer:
no