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| A white line of Hilton, Hilton's white line (The line which shows the junction; of the skin and the mucous membrane. That white line corresponds; cxactly to the lineal interval between the external and internal sphincter; muscle Jane_G) | |||
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| A white line of Hilton, Hilton's white line (The line which shows the junction; of the skin and the mucous membrane. That white line corresponds; cxactly to the lineal interval between the external and internal sphincter; muscle Jane_G) | |||