Elaboration reviewing and updating
The current complete version of the Handbook is 5.1 (updated March 2011), edited by Julian Higgins and Sally Green.
All authors should consult the Handbook for guidance on the methods used in Cochrane systematic reviews.
The National Standards Organism (ONN) is created on July 29th, 2005, as a moral person to carry out voluntary standardization activities, through the elaboration, review, update, issuance and cancellation of Mexican standards in all areas related to iron and steel and to participate in national and international standardization.
You should think about reviewing your risk assessment if your business: You should note the date when you revise your risk assessment but you only need to alter your records if there are new and significant findings or if existing precautions prove inadequate or can be improved.
The Handbook includes guidance on the standard methods applicable to every review (planning a review, searching and selecting studies, data collection, risk of bias assessment, statistical analysis, GRADE and intepreting results), as well as more specialised topics (non-randomized studies, adverse effects, economics, patient-reported outcomes, individual patient data, prospective meta-analysis, qualitative research, reviews in public health and overviews of reviews).
Official translations of the Handbook are also available in Spanish and Simplified Chinese (see links above right).
It makes sense therefore, to review what you are doing on an ongoing basis.
Every year or so, formally review where you are, to make sure you are still improving, or at least not sliding back.