Stems can be basic.Logical formLearned from9 sentences. A shape may pertain-to a stem.Logical formLearned from9 sentences. Adult (stem cells) may have an ability.Logical formLearned from9 sentences. A policy can be on (stem cells).Logical formLearned from9 sentences. (Stem cells) can be useful.Logical formLearned from9 sentences. A stem can be solid.Logical formLearned from9 sentences. (Stem cell research) may need some (government money).Logical formLearned from9 sentences. Federal funding can be constituted-of-or-filled-with (stem cell lines).Logical formLearned from9 sentences. A handful can be constituted-of-or-filled-with stems.Logical formLearned from9 sentences. Hematopoietic (stem cells) may undergo a differentiation.Logical formLearned from9 sentences. (Stem cells) may be obtained.Logical formLearned from9 sentences. Neurons can be from (stem cells).Logical formLearned from9 sentences. Adult (stem cells) can be in research.Logical formLearned from9 sentences. Ethical issues can be in (stem cell research).Logical formLearned from9 sentences. A (stem cell biology) can be adult.Logical formLearned from9 sentences.