OUTSIDE 2: Outdoor swimming as a nature-based intervention, offered in addition to usual care, compared to usual care alone, in people with depression: A study protocol for a randomised controlled trial and economic evaluation
Massey H., Denton H., Bibby-Jones A-M., Bremner S., Violato M., Burlingham A., Cunningham R., Hasnaoui S., Harper M., Robertson S., Ciccognani S., Aranda K., Arbon A., Murphy G., Bruce C., Lambert D., Strauss C.