Updates are available Correction dated 2019-07-08

Article History

First Online: 29 April 2019

Change Date: 8 July 2019

Change Type: Correction

Change Details: The original version of this article unfortunately contained two mistakes. The presentation of Fig. 2 was incorrect. The corrected version is given below. It has been updated in this corrected version, to reflect accurate information on the frequencies of components present in all 28 treatment manuals. The previously erroneously published figure contained frequencies from only 25 manuals, and this figure was created prior to the inclusion of 3 more recent manuals added during the process of the review. Furthermore, there is an error on page 13, in the sentence “These 25 intervention manuals were coded on the 72 Practice Wise codes, plus the additional code of Homework.” It should say “28”.

Compliance with Ethical Standards

:

: The authors declare that they have no conflict of interest.

: This article does not contain any studies with human participants or animals performed by any of the authors.