Thus, even if these cases are considered to extend beyond the coverage of Article 2(iii), if such persons cannot be treated as nationals by the relevant countries, measures should be taken to provide them with protection by recognizing them as stateless persons and to reduce statelessness in the future. (As for how protection and reduction should be implemented, see Category A [Conflict of laws].) Furthermore, in some cases, a certain period of investigation is necessary to determine that Article 2(iii) is to be applied, even for an eligible case. Efforts need to be made so that social welfare measures are adequately administered for the persons concerned during such period to ensure their receipt of assistance, such as mother-child health care. 102