Brewer, Hannah R, Hirst, Yasemin ORCID: 0000-0002-0167-9428, Chadeau-Hyam, Marc, Johnson, Eric, Sundar, Sudha and Flanagan, James M (2023) Association Between Purchase of Over-the-Counter Medications and Ovarian Cancer Diagnosis in the Cancer Loyalty Card Study (CLOCS): Observational Case-Control Study. JMIR Public Health and Surveillance, 9 .
Brewer, Hannah Rose, Hirst, Yasemin ORCID: 0000-0002-0167-9428, Sundar, Sudha, Chadeau-Hyam, Marc and Flanagan, James M (2020) Cancer Loyalty Card Study (CLOCS): protocol for an observational case-control study focusing on the patient interval in ovarian cancer diagnosis. BMJ Open, 10 (9).