Cetthakrikul, N., Ngamvirojcharoen, B., Manaboriboon, N., Wongsuwanphon, S., & Suphanchaimat, R. (2025). Obstetric Service Utilization in Public Health Facilities during COVID-19 Pandemic among Cross-border Migrants in Thailand, 2019–2022. Outbreak, Surveillance, Investigation & Response (OSIR) Journal, 18(2), 106–115. https://doi.org/10.59096/osir.v18i2.273673