Subject to subsection (b), a family member of a veteran described in subparagraph (F) of
section 1710(e)(1) of this title who resided at Camp Lejeune, North Carolina, for not fewer than 30 days during the period described in such subparagraph or who was in utero during such period while the mother of such family member resided at such location shall be eligible for hospital care and medical services furnished by the Secretary for any of the illnesses or conditions described in such subparagraph, notwithstanding that there is insufficient medical evidence to conclude that such illnesses or conditions are attributable to such residence.