Willy Lewis, M.D.

1994 articles

How sex differences develop between organs

Development of gender-specific organ differences in different animal species. © Leticia Rodríguez-Montes Depending on their gender, mammals have different characteristics, including at the level of...

Bird flu H5N1 has reached Antarctica

Brown skua (Stercorarius antarcticus) in sub-Antarctic South Georgia, where H5N1-infected skuas of this species have now been discovered for the first time. ©...

Clever active ingredient gel for inflamed intestinal walls

The treatment of painful ulcerative colitis has so far been problematic. © Tharakorn/iStock Hope for a new treatment option for the painful intestinal inflammation caused...

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