A "furious backlash" to the lawsuit resulted in the filing of formal complaints of false advertising against more than 500 individual chiropractors within one 24-hour period, with one national chiropractic organisation ordering its members to take down their websites, and "Nature Medicine" noting that the case had gathered wide support for Singh, as well as prompting calls for the reform of English libel laws. On 1 April 2010, Simon Singh won his court appeal for the right to rely on the defence of fair comment. On 15 April 2010, the BCA officially withdrew its lawsuit, ending the case.