A US-president may support (stem cell research).Logical formLearned from13 sentences. (Stem cell therapy) may undergo a use.Logical formLearned from13 sentences. (Menstrual stem cells) may pertain-to a female.Logical formLearned from13 sentences. A (stem cell therapy) can be experimental.Logical formLearned from13 sentences. A stem can be constituted-of-or-filled-with grass.Logical formLearned from13 sentences. Limits can be on (stem cell research).Logical formLearned from13 sentences. A (stem cell research) can be supported.Logical formLearned from13 sentences. Work can be with embryonic (stem cells).Logical formLearned from13 sentences. Millions can be constituted-of-or-filled-with (stem cells).Logical formLearned from13 sentences. (Stem cells) can be in existence.Logical formLearned from13 sentences. A stem can be hard.Logical formLearned from13 sentences. Embryonic (stem cells) may be took from embryos.Logical formLearned from13 sentences. (Stem cells) can be retinal.Logical formLearned from13 sentences. Some new types can be constituted-of-or-filled-with (stem cells).Logical formLearned from13 sentences. A stem can be buried.Logical formLearned from13 sentences.