Original sentence: Note that one of these studies did show study subjects as able to distinguish real from sham stimuli: Six of 95 EHS participants (6.3%) and 1 of 47 control participants (2.1%) were reliably able to discriminate active from inactive conditions in these experiments, a nonsignificant difference in proportions (chi-square = 1.18, df = 1, p =.Since the Rubin et al.study, several more double-blind experiments have been published, each of which has suggested that people who report electromagnetic hypersensitivity are unable to detect the presence of electromagnetic fields and are as likely to report ill health following a sham exposure, as they are following exposure to genuine electromagnetic fields
Edited sentence: Since then, several more double-blind experiments have been published, each of which has suggested that people who report electromagnetic hypersensitivity are unable to detect the presence of electromagnetic fields and are as likely to report ill health following a sham exposure, as they are following exposure to genuine electromagnetic fields