原始出处:Valentina Parma, Romain Brasselet, Stefania Zoia, Maria Bulgheroni, Umberto Castiello. The origin of human handedness and its role in pre-birth motor control. Scientific Reports, 2017; 7 (1) DOI: 10.1038/s41598-017-16827-y https://www.nature.com/articles/s41598-017-16827-y