SARAH BEDICHEK PIPKIN, ALAN C. PIPKIN; VARIATION OF EXPRESSION OF POLYDACTYLY, Journal of Heredity, Volume 37, Issue 3, 1 March 1946, Pages 93–96, https://
No takes yet. Share an insight, caveat, or question.
Pipkin et al. (1946) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: