Stems can be thick.Logical formLearned from7 sentences. (Stem cells) may be harvested from (bone marrow).Logical formLearned from7 sentences. (Stem cells) can be in culture.Logical formLearned from7 sentences. Stems can be annual.Logical formLearned from7 sentences. Stems may wilt.Logical formLearned from7 sentences. A percent may pertain-to stems.Logical formLearned from7 sentences. Stems may remain firm.Logical formLearned from7 sentences. (Stem discoloration) may be limited to a cortical layer of a root.Logical formLearned from7 sentences. Some (stem cell experts) may submit applications.Logical formLearned from7 sentences. (Cord blood) can be rich in (stem cells).Logical formLearned from7 sentences. Dollars may be spent on deriving (stem cells).Logical formLearned from7 sentences. (Funding restrictions) can be on (stem cell research).Logical formLearned from7 sentences. Stems may be broken.Logical formLearned from7 sentences. An axis may pertain-to a stem.Logical formLearned from7 sentences. Hematopoietic (stem cells) can be long-term.Logical formLearned from7 sentences.