Reproductions supplied by EDRS are the best that can be ... - ERIC
regression equation. 7 = a + 61ogX. (1) was used in which X was the mean indi- cator density and Y the gastrointestinal symptom rate. RESULTS.
Part of the document
regression equation. 7 = a + 61ogX. (1) was used in which X was the mean indi- cator density and Y the gastrointestinal symptom rate. RESULTS.

