F1000Research 2019, 8:323 Last updated: 17 MAY 2019
                                                            
                         
                     
                                                        
                        
                        
                            
                            
                                                                PLOS ONE | https://doi.org/10.1371/journal.pone.0196239 April 23, 2018
                                                            
                         
                     
                                                        
                        
                        
                            
                            
                                                                PLOS ONE | DOI:10.1371/journal.pone.0133869 July 28, 2015, p.1-16
                                                            
                         
                     
                                                        
                        
                        
                            
                            
                                                                PLOS Medicine | https://doi.org/10.1371/journal.pmed.1002514 March 1, 2018