@misc{indiciae26e0f5764fc1, title = {On doing the "impossible": inferring that a putative causal relationship does not exist.}, author = {W Hall and S Einfeld}, year = {1990}, doi = {10.3109/00048679009077687}, url = {https://pubmed.ncbi.nlm.nih.gov/2396967/}, note = {Source identifier: 2396967} }