@misc{indiciae7ad45f594022, title = {Response patterns to a postal survey using a cervical screening register as the sampling frame.}, author = {B Olowokure and M Caswell and H V Duggal}, year = {2004}, doi = {10.1016/j.puhe.2003.12.013}, url = {https://pubmed.ncbi.nlm.nih.gov/15351224/}, note = {Source identifier: 15351224} }