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APA Citation
O'Connor, J., Erickson, G., Norell, M., Bailleul, A., Hu, H., & Zhou, Z. (2018). medullary bone in an Early Cretaceous enantiornithine bird and discussion regarding its identification in fossils. Nature communications, 9(1), 1–8. http://access.bl.uk/ark:/81055/vdc_100099701082.0x000153