@misc{indiciae2f307dba80a2, title = {[Sampling and representativeness in epidemiological surveillance using sentinel sites]}, author = {J Samaja}, year = {1996}, doi = {10.1590/s0102-311x1996000300004}, url = {https://pubmed.ncbi.nlm.nih.gov/10904333/}, note = {Source identifier: 10904333} }