Iaccarino, Guido, Michele Ciccarelli, Daniela Sorriento, Gennaro Galasso, Alfonso Campanile, Gaetano Santulli, Ersilia Cipolletta, et al. 2005. “Ischemic neoangiogenesis enhanced by $\beta$2-adrenergic receptor overexpression: a novel role for the endothelial adrenergic system”. Circulation Research 97 (11): 1182-89.