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. 2013 Mar 18;8(3):e55450. doi: 10.1371/journal.pone.0055450

Figure 1. Geographic location of the Catania and Messina provinces.

Figure 1

Approximately, 14% of the Catania cohort is represented by HT patients coming from the neighboring provinces of Siracusa (6%), Ragusa (2.5%), Enna (2%), Caltanissetta (2.5%) and Agrigento (0.7%). This compares with approximately 18% of the Messina cohort of HT patients coming from Southern Calabria, particularly from the province of Reggio Calabria. Population in these provinces is approximately 1.1 million (Catania), 660,000 (Messina), 400,000 (Siracusa), 300,000 (Ragusa), 275,000 (Caltanissetta), 175,000 (Enna), 450,000 (Agrigento), and 560,000 (Reggio Calabria).