@misc{indiciae5458b83f62c0, title = {Nail-biting in twins.}, author = {H Bakwin}, year = {1971}, doi = {10.1111/j.1469-8749.1971.tb03265.x}, url = {https://pubmed.ncbi.nlm.nih.gov/5093291/}, note = {Source identifier: 5093291} }