@misc{indiciae45bc366229d2, title = {Sampling and screening problems in a rheumatic heart disease case-finding study.}, author = {E A GEHAN}, year = {1958}, doi = {10.2105/ajph.48.10.1335}, url = {https://pubmed.ncbi.nlm.nih.gov/13583276/}, note = {Source identifier: 13583276} }