@misc{indiciae8d421ea25723, title = {Twin concordance for a binary trait. I. Statistical models illustrated with data on drinking status.}, author = {M C Hannah and J L Hopper and J D Mathews}, year = {1983}, doi = {10.1017/s0001566000006413}, url = {https://pubmed.ncbi.nlm.nih.gov/6685962/}, note = {Source identifier: 6685962} }