Open Access & Publication Fees

To publish an article on an Open Access basis, either an Article Publication Charge (APC) is payable by the Authors (or the Authors' institutions or research funders) on acceptance of their manuscript or the third-party owner of the publication sponsors this fee on the Authors' behalf. Publication fees can vary by publication, so please refer to a publication's homepage for more information on whether an APC applies and if so how much it is. Note that no fees will ever be charged for rejected articles and no surcharges will apply if an article exceeds a certain length, nor for illustrations and figures (including color figures), nor for supplementary data unless noted otherwise.

For publications where an Article Publication Charge (APC) applies, Authors may be eligible for an APC waiver or discount in certain situations. Examples of this are:

• If the Corresponding Author of an article is from an institution based in one of the countries on the Hinari (Research4Life) list, then the APC is either fully waived (for countries in Group A) or a 50% discount applies (for countries in Group B). More details on Hinari eligibility and the countries in each group can be found here.
• In the case of a society-owned publication, APC waivers or discounts may be offered to society members.
• Certain article types are always exempted from paying any publication charges. This applies to the following: editorials, corrigenda, errata, corrections, retractions and letters to/from the Editor.
• Certain publications may have publication-specific APC waiver or discount offers. Such promotional offers will be shown on the homepage of these publications.

Please refer to a publication's homepage for further details on which APC waivers or discounts may apply. Note that if an article is eligible for multiple APC discounts based on above, then only one of these discounts can be applied at any given time. Different APC discounts may not be applied simultaneously to the same article.