Clienti D, Issel M, Wells R, Link (Anderson) S, Lich KH. System dynamics approaches and collective action for community health: an integrative review. Am J Community Psychol. 2019 Jun;63(3-4):527-45. doi: 10.1002/ajcp.12305
Mangel AW, Fehnel SE. End points in irritable bowel syndrome. Expert Rev Gastroenterol Hepatol. 2011 Jun 1;5(3):293-5.