Dear Dr. Eddy,
I am going to submit my first paper for which I am the main contributor. During the course of this study, a senior post-doc in our lab helped me troubleshoot and suggested some key experiments. He even helped me analyze some data. I would like to include his name as a co-author on this paper. Also, my research advisor wants me to include the name of one of our collaborators who provided some cell lines that we used in this study, but I’m not sure about this. I would like to know whether there are any standard guidelines for deciding who should be considered an author.