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Samples are mostly from men that already have problems with fertility. Helthy mens probably wont give samples for studies etc. So those general conclusions are
by t0bia_s 5y ago
Samples are mostly from men that already have problems with fertility. Helthy mens probably wont give samples for studies etc. So those general conclusions are not valid so much.
- sjg007 5y agoI don't think you can say that and that would be controlled for anyway.
- jasonvorhe 5y agoWhere's the source for your "mostly"? And you're arguing against a study with "probably"? That's not a compelling argument.