For med school application, would clinical research posters be considered publications? These posters will be presented at several research conventions and it'd be awesome if they count as publications. Also, how are LOR's from PhD candidates compared to those from PhDs/professors? I ask this, because I've only been in huge lecture classes so far. My TA's (known as GSI's at my school) know me well, but none of my professors know me. Surely, I will put in some effort to get to know my professors better in the future, but as it stands, I might get a LOR from a TA. Thanks for the help.