Persistent acne, excess facial hair and irregular periods may sometimes signal polycystic ovary syndrome (PCOS), a common hormonal condition affecting women of reproductive age. Experts say ...
Bacterial extracellular vesicles (BEVs) are membrane-bound particles between 20 and 400 nanometers (nm) in size that are secreted by bacteria. BEVs carry bioactive agents that mediate cell-to-cell ...
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