No Federal funds may be used to fund research or publications relating to gender transition in individuals under the age of 18, including any observational studies that gather evidence on the provision of hormonal treatments or surgical procedures on minors, for the purpose of— (1) affirming a minor’s perception of his or her sex, if that perception is incongruent with such minor’s sex; or (2) affirming a minor’s asserted identity, if the asserted identity is incongruent with such minor’s sex.