Abstract: Methods, computer systems, and computer program products for maintaining a stem cell registry comprising information about a plurality of stem cell units. A donor is enrolled in the stem cell registry. A stem cell unit from the donor is characterized. Information about the stem cell unit, obtained by the characterizing, is recorded in the stem cell registry. Computer readable media comprising a plurality of data records. One or more respective data records in the plurality of data records comprises (i) a collection identifier number that uniquely corresponds to a stem cell donation, (ii) a cord blood cell count associated with the stem cell donation, and (iii) a placenta blood cell count associated with the stem cell donation. Additional computer readable media comprising a plurality of data records.