Hernia frequencies,
Paraesophageal Hernia 125-22 Hz
Paraesophageal Hernia 275-56 Hz
Paraesophageal Hernia 819-34 Hz
Paraesophageal Hernia 915-7 Hz
Paraesophageal Hernia 125-22 275-56 819-34 915-7 Hz
And a related set,
esophageal Hernia 125-22 275-56 635-31 833-2 Hz
The first set works better.