This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pathology
Nicoladoni sign is also known as 
Select and explain. 
A. Branham sign, B. Murray sign, C. Frei's sign, D. Darrier's sign
A: Branham sign
Answer: A: Branham sign 
Explanation: In medicine, the Nicoladoni sign, also Branham sign and Nicoladoni-Israel-Branham sign, is the slowing of the hea rate in response to (manual) compression of an aeriovenous fistula. Robbins 9 th edition page no. 365 onwards