@misc{indiciae1f9264528f6d, title = {Feather papilla stimulation by progesterone.}, author = {C S SHAFFNER}, year = {1954}, doi = {10.1126/science.120.3113.345}, url = {https://pubmed.ncbi.nlm.nih.gov/13186852/}, note = {Source identifier: 13186852} }