A stem can be with roots.Logical formLearned from5 sentences. Researcher may use (pluripotent stem cells).Logical formLearned from5 sentences. (Blood stem cells) may be knowned.Logical formLearned from5 sentences. Research may use (stem cell lines).Logical formLearned from5 sentences. Cells may be reprogramed into (stem cells-without).Logical formLearned from5 sentences. A need can be for embryonic (stem cells).Logical formLearned from5 sentences. Research may use (nortriptyline stem cells).Logical formLearned from5 sentences. Embryonic (stem cells) may undergo a transformation.Logical formLearned from5 sentences. (Stem cell) may be created from (adult cells).Logical formLearned from5 sentences. A body may maintain a (stem cell).Logical formLearned from5 sentences. Stems can be strong.Logical formLearned from5 sentences. (Stem cells) can be effective.Logical formLearned from5 sentences. A (stem cell extraction) can be safe.Logical formLearned from5 sentences. (Adult stem cells) can be pushovers.Logical formLearned from5 sentences. Difficulties may be associated with embryonic (stem cells).Logical formLearned from5 sentences.