 Concern was expressed about methods that involve holding and restraint, and the lack of randomized, controlled experiments showing the effectiveness of the treatment.In 2010 a modest social work study and "invitation to a debate", based on interviews with the deliverers and recipients of a therapeutic intervention incorporating non-coercive holding at one centre in the UK, called for further consideration of the use of this type of intervention.The intervention was not described as "holding therapy" but as using a degree of holding in the course of therapy.