“…Changes over time were analysed in 11 studies 23 , 25 , 26 , 31 , 39 , 43 , 59 – 61 , 67 , 75 , 85 , 91 , 103 , 115 , 134 , 141 , 162 , covering a time span from 3 to 11 years. Overall, these studies showed that topic coverage increased over time, most notably for: (a) depositing of DNA, amino acid sequence or protein structure data; (b) describing the peer review process; or c) recommending the use of Consolidated Standards of Reporting Trials (CONSORT) Guidelines (Supplementary Table 3 ).…”