Ralph, M. et al. 2023. In post-natal women with nipple pain, does photobiomodulation therapy (PBMT) at 660 nm compared with sham PBMT reduce pain on breastfeeding? A case series during COVID-19. Laser Therapy. 30, 1 (Apr. 2023). DOI:https://doi.org/10.4081/ltj.2023.315.