Adding citations from a file is also a relatively easy method to get citations into My Bibliography. What is less easy is creating that file according to the required specifications. My NCBI needs a bibliographic file type, like an RIS file. These can be exported from citation management systems like Zotero or EndNote, among others. However, if you are just getting started, amassing the required citations will take time. The example used in this tutorial will generate the RIS file using a free online tool called Zotero Bib.
I recommend this method of adding items to My Bibliography if the faculty is not in the life or biomedical sciences and has few if any articles contained in the database PubMed.