SPIRIT 2013 checklist: Recommended items to address in a clinical trial protocol and related documents*.
(DOC)Click here for additional data file.(PDF)Click here for additional data file.(DOCX)Click here for additional data file.(DOCX)Click here for additional data file.We thank ‘nestwärme gGmbH’ and its network partners, and the umbrella organization ‘Kindernetzwerk e.V.’ for recruiting the study participants. We would also like to thank our other NEST consortium partners aQua GmbH, and ism gGmbH, Germany, for their advice and assistance.