Came here to mention that. Additionally these findings are easily explained if we assume that salt has some positive and some negative effects occurring in diff

Came here to mention that. Additionally these findings are easily explained if we assume that salt has some positive and some negative effects occurring in different parts of the body. Say salt has some positive effects for the liver and negative effects for the heart, then a paper on liver disease will mostly cite positive studies about salt, that is it cites studies on the liver, and a paper on heart diseases will cite mostly negative.