Not medical lingo: Are you sure you have the spelling right. I don't know of any gravitaitonal lines in front of the sacral promontory. Please review your report. This could be typographic error. I see this often due to spell checker errors.
Answered 4/30/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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