In this task, you will be given sentences in which your task is to recognize the name of the organ of the body. An organ is a collection of tissues that structurally form a functional unit specialized to perform a particular function. Although there might be several correct answers, you need to write one of them.
Q:  Cerebral blood flow ( CBF ) was measured with continuous arterial spin - labeling perfusion magnetic resonance ( MR ) imaging in 14 children with sickle cell disease and seven control subjects .
A:
Cerebral