Decision of the Constitutional Court of the Russian Federation No. 25-P of June 20, 2018 on the Case of Checking the Constitutionality of Subitem 6 of Item 1 of Article 127 of the Family Code of the Russian Federation and Item 2 of the List of Diseases in Case of the Existence of Which the Person Can Not Adopt a Child for a Son (for a Daughter) or Take It Under His Guardianship (Trusteeship) or into an Adoptive or a Patronage Family in Connection With the Complaint of Citizens K.S. and R.S.