https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1614-8 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1610-z https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1638-0 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1633-5 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1640-6 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1597-5 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1636-2 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1604-x https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1624-6 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1643-3 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1648-y https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1634-4 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1637-1 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1644-2 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1613-9 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1649-x https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1609-5 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1616-6 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1603-y https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1623-7 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1642-4 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1619-3 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1647-z https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1630-8 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1601-0 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1587-7 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1607-7 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1626-4 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1645-1 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1652-2 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1621-9 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1629-1 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1620-x https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1657-x https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1617-5 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1605-9 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1611-y https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1631-7 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1650-4 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1608-6 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1627-3 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1615-7 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1602-z https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1639-z https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1641-5 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1598-4 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1618-4 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1625-5 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1612-x https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1632-6 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1628-2 https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-016-1635-3