@misc{indiciae31bdb3c3bc03, title = {Multicentre studies and conflicting prevalence data.}, author = {W Aberer and H Holub}, year = {1992}, doi = {10.1111/j.1600-0536.1992.tb05237.x}, url = {https://pubmed.ncbi.nlm.nih.gov/1395628/}, note = {Source identifier: 1395628} }