Some (stem cell lines) can be in existence.Logical formLearned from10 sentences. Samples can be constituted-of-or-filled-with (stem cells).Logical formLearned from10 sentences. Stems may be attached.Logical formLearned from10 sentences. Interest can be in (stem cells).Logical formLearned from10 sentences. (Stem cells) can be for medical research.Logical formLearned from10 sentences. Stems can be fibrous.Logical formLearned from10 sentences. A piece may pertain-to a stem.Logical formLearned from10 sentences. (Stem cells) can be in an embryo.Logical formLearned from10 sentences. (Stem cells) may be pushed into an arm.Logical formLearned from10 sentences. (Stem cells) can be tailor-made.Logical formLearned from10 sentences. A (stem cell policy) may pertain-to a president.Logical formLearned from10 sentences. Embryonic (stem cells) may be extracted from human embryos.Logical formLearned from10 sentences. A (brain stem) may control breathing.Logical formLearned from10 sentences. (Stem cells) may undergo a differentiation.Logical formLearned from10 sentences. Stems can be vigorous.Logical formLearned from10 sentences.