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Male-to-female ratio of hepatocellular carcinoma (HCC) by region in Mexico. West (n = 56), center-south (n = 138), northeast (n = 24), center-north (n = 48), southeast (n = 1.4:1), east (n = 174), northwest (n = 32), southwest (n = 76). States with no participants: Baja California, Baja California Sur, Chihuahua, Nayarit, Aguascalientes, and Colima.
