Withholding information from patients during an informed consent process is ethically unacceptable. Patients may restrict the amount of information they wish to receive or designate someone else to receive the information for them.
AMA J Ethics. 2015;17(3):209-214. doi:
10.1001/journalofethics.2015.17.3.ecas2-1503.
Specific contributions to a scientific article entitle the contributor to be included as an author; requests for authorship by those who have not made those specific contributions are unethical.