ABSTRACT
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The outstanding achievements in molecular and cellular biology are continuously providing
new information on the factors determining the cause and the progression of the most
important diseases. In this scenario, a new field has emerged, i.e., molecular imaging
that pursues the in vivo visualization of molecular events occurring at cellular and subcellular
level [1]. The possibility of visualizing a molecule that represents the signature of a given
disease is an outstanding breakthrough in the diagnostic protocols currently followed in
clinical settings.
