The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Best way to monitor perfusion of free flap:   (A) Pulse oximeter   (B) Laser doppler velocimetery   (C) Prick test   (D) Flourescin & dermo flourometer
['(C) Prick test <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Pulse oximeter \n (B) Laser doppler velocimetery \n (C) Prick test \n (D) Flourescin & dermo flourometer <> possible answers', '  Best way to monitor perfusion of free flap: <> context@']