Twin testosterone transfer hypothesis and the second‐to‐fourth digit ratio in females of same‐sex and opposite‐sex twin pairs: An exploratory study by Moses Banyeh, Martha Nyewie, Abdul‐Rafik Abdulai, Charles Nkansah, Gabriel Abbam, Thea Kangkpi, Kervin Edinam Zogli, Shafiat Omotoyosi Shittu, David Bure, Romarick Kofi Wemegah, Mikail Ihsan Azindow, Suleman Yakubu, Musah Seidu, Mohammed Madde Baba, Elisha Essoun, Nancy Owireduwaa, Augusta S. Kolekang

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