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This investigation was supported by a grant from the National Science Foundation.
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Wingfield, J.C., Newman, A., Hunt, G.L. et al. Androgen in high concentrations in the blood of female western gulls,Larus occidentalis . Naturwissenschaften 67, 514–515 (1980). https://doi.org/10.1007/BF01047637
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DOI: https://doi.org/10.1007/BF01047637