Research Christmas 2023: Marginal Gains Common Healthcare Related Instruments Subjected To Magnetic Attraction Study (CHRISTMAS): prospective in situ experimental study BMJ 2023; 383 doi: https://doi.org/10.1136/bmj-2023-077164 (Published 21 December 2023) Cite this as: BMJ 2023;383:e077164 Article Related content Metrics Responses Peer review Data supplement Web extra Data Supplement - Supplementary information: Additional table and figures Data Supplement - Supplementary information: infographic Related articles Editor's Choice Ideas for a new world Published: 21 December 2023; BMJ 383 doi:10.1136/bmj.p2971 See more Association of health benefits and harms of Christmas dessert ingredients in recipes from The Great British Bake Off: umbrella review of umbrella reviews of meta-analyses of observational studies BMJ December 20, 2023, 383 e077166; DOI: https://doi.org/10.1136/bmj-2023-077166 Retail demand for emergency contraception in United States following New Year holiday: time series study BMJ December 20, 2023, 383 e077437; DOI: https://doi.org/10.1136/bmj-2023-077437 Cheers not tears: champagne corks and eye injury BMJ December 20, 2023, 383 p2520; DOI: https://doi.org/10.1136/bmj.p2520 Chocolate brownies and calorie restriction: the sweetest paradox? BMJ December 20, 2023, 383 p2585; DOI: https://doi.org/10.1136/bmj.p2585 The manosphere and men’s wellbeing: How healthcare can help young men find alternatives to toxic online spaces BMJ December 19, 2023, 383 p2947; DOI: https://doi.org/10.1136/bmj.p2947 Cited by... Ideas for a new worldFulltext PDF