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17
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Active since
1944
J. E. Nicholas is an author specializing in photoperiodic endocrinology, reproductive biology, and reproductive physiology.
Publications per year
1944–1944
Influence of light on age at sexual maturity and ovulation rate of pullets.
Ernest Callenbach, J. E. Nicholas, Rosemary Murphy · 1944 · 17 citations
Medicine, Endocrinology, Reproductive Biology +11
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