HWBS - According to Wikipedia, The key properties of a stem cell were first defined by Ernest McCulloch and James Till at the University of Toronto in the early 1960s. They discovered
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Table 1 from Health effects of omega-3,6,9 fatty acids: Perilla frutescens is a good example of plant oils | Semantic Scholar
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Two guava fruits. Two quava fruits over a white background, fruit of the shrub psidium guajava. wikipedia notes that guava is | CanStock
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