presumptions rebuttable

presumptions rebuttable Sec. 314. (a) Where there is affirmative evidence to the contrary, or evidence to establish that an intercurrent injury or disease which is a recognized cause of any of the diseases within the purview of section 313, has been suffered between the date of separation from service and the onset of any of such diseases, or the disability is due to the veteran’s own misconduct, service connection pursuant to section 313 will not lie in order. (b) Nothing in section 313 or subsection (a) of this section shall be construed to prevent the granting of service connection for any disease or disorder otherwise shown by sound judgment to have been incurred in or aggravated by active military, naval, or air service.