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doi: 10.1016/j.jgg.2014.04.003
If you've been told it's just IBS, just stress, just something you have to live with, and nothing has actually fixed the problem, it's worth looking deeper

This is surprising, since blood samples from cetaceans showed elevated GSR activities compared with terrestrial mammals (Filho et al., 2002)

Both are essential for normal cell division and successful fertilization