A (stem cell trial) may pertain-to a world-city.Logical formLearned from4 sentences. (Blood stem cells) can be primitive.Logical formLearned from4 sentences. (Stem cells) can be a perfect match.Logical formLearned from4 sentences. A side may pertain-to a (valve stem).Logical formLearned from4 sentences. Stems may be left.Logical formLearned from4 sentences. (Stem calls) may regenerate types of cells.Logical formLearned from4 sentences. A stem can be between a thumb.Logical formLearned from4 sentences. (Stem cells) may have characteristics.Logical formLearned from4 sentences. (Stem cells) may be found in fluid.Logical formLearned from4 sentences. A doctor may produce (stem cell lines).Logical formLearned from4 sentences. Social conservatives can be on (stem cell research).Logical formLearned from4 sentences. A person may find a stem.Logical formLearned from4 sentences. (Stem cells) may pertain-to a woman.Logical formLearned from4 sentences. (Stem cell research) may lead to advances.Logical formLearned from4 sentences. (Stem cells) may make (cell types).Logical formLearned from4 sentences.