A stem may be broken.Logical formLearned from7 sentences. A (spurge stem) can be leafy.Logical formLearned from7 sentences. A (stem cell line) may pertain-to the world.Logical formLearned from7 sentences. Parents may freeze (amnio stem cells).Logical formLearned from7 sentences. A dna can be in (stem cells).Logical formLearned from7 sentences. (Stem cells) can be pluripotent.Logical formLearned from7 sentences. Stem can be intact.Logical formLearned from7 sentences. Research can be on some types of (stem cells).Logical formLearned from7 sentences. A (stem cell research initiative) may pertain-to a us-state.Logical formLearned from7 sentences. Embryos may be used for (stem cell research).Logical formLearned from7 sentences. (Stem cells) can be rare.Logical formLearned from7 sentences. Drugs may target (cancer stem cells).Logical formLearned from7 sentences. A stem can be affected.Logical formLearned from7 sentences. Stems can be on lilies.Logical formLearned from7 sentences. (Stem cells) can be a source.Logical formLearned from7 sentences.