https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1182-y
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1179-6
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1183-x
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1181-z
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1114-2
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1142-y
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1121-3
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1170-2
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1097-z
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1180-0
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1143-x
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1106-2
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1155-1
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-0984-7
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1138-7
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1162-2
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1145-8
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1167-x
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1152-9
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1148-5
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1136-9
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1165-z
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1156-0
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1140-0
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1163-1
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1126-y
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1146-7
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1188-5
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1105-3
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1133-z
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1124-0
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1175-x
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1149-4
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1154-2
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1137-8
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1108-0
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1159-x
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1161-3
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1095-1
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1144-9
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1166-y
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1186-7
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1173-z
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1164-0
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1128-9
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1147-6
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1134-y
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1157-z
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1177-8
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1141-z
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1132-0
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1116-0
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1174-y
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1109-z
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1129-8
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1153-3
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-1107-1
https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1158-y