@misc{indiciae8d8883155d95, title = {Field-based random sampling without a sampling frame: control selection for a case-control study in rural Africa.}, author = {A C Crampin and V Mwinuka and S S Malema and J R Glynn and P E Fine}, doi = {10.1016/s0035-9203(01)90009-4}, url = {https://pubmed.ncbi.nlm.nih.gov/11706653/}, note = {Source identifier: 11706653} }