Safety, health improvement and well-being during a 4 to 21-day fasting period in an observational study including 1422 subjects https://www.mindfulnessinbiz.org.hk/wp-content/uploads/Safety-health-improvement-and-well-being-during-a-4-to-21-day-fasting-period-in-an-observational-study-including-1422-subjects-pdf.pdf
