From the first issue of 2021 onwards, this journal requires CRediT taxonomy (Contributor Roles Taxonomy) when there are two or more authors. 

• The corresponding author is expected to present CRediT details that provide the opportunity to share an accurate and detailed description of the authors' contributions to the published article.
• The role(s) of all authors should be listed, using the relevant categories.
• Authors may have contributed in multiple roles.
• This information must be provided after the authors' short bios. F

The roles of authors may be classified as the followings, but not limited to:

Conceptualization (Ideas; formulation or evolution of overarching research goals and aims).

Methodology (Development or design of methodology; creation of models).

Software (Programming, software development; designing computer programs; implementation of the computer code, etc.).

Formal analysis (Application of statistical, mathematical, computational, or other formal techniques to analyze or synthesize study data).

Investigation (Conducting a research and investigation process, specifically performing the experiments, or data/evidence collection).

Resources (Provision of study materials, reagents, materials, participants, samples, instrumentation, computing resources, or other analysis tools).

Writing – original draft preparation (Creation and/or presentation of the published work, specifically writing the initial draft (including substantive translation).

Writing – review and editing (Preparation, creation, and/or presentation of the published work by those from the original research group, specifically critical review, commentary, or revision – including pre-or post-publication stages)

Supervision (Oversight and leadership responsibility for the research activity planning and execution, including mentorship external to the core team).

Project administration (Management and coordination responsibility for the research activity planning and execution).

Funding acquisition (Acquisition of the financial support for the project leading to this publication).

The corresponding author may use the following example to state author contributions as authorship credits:

Tanya Bush (Conceptualization/Administration - formulated research goals and aims, and administered the research)

William Star and Selim Metin (Methodology - designed the methodology)

Helen Woody and Alice Silen (Writing, review, and editing - prepared and/or presented the published work)

Source: https://onlinelibrary.wiley.com/doi/full/10.1002/leap.1210