Hubner, K., Thie, J., Smith, G., Kabalka, G., Keller, I., Kliefoth, A., … Buonocore, E. (1998). Positron Emission Tomography (PET) with 1-Aminocyclobutane-1- (11)C carboxylic Acid (1- (11)C -ACBC) for Detecting Recurrent Brain Tumors. Clinical Positron Imaging : Official Journal of the Institute for Clinical P.E.T, 1(3), 165-173. https://doi.org/10.1016/s1095-0397(98)00010-7