Rubin said she sometimes does not use Twitter if she is concerned about others copying her story idea. She will use e-mail or other ways of contacting sources. However, Rubin said she has found excellent sources with different perspectives on Twitter, expanding her followers and contact globally. She noted that she will send out a question on Twitter and engage in great conversations thanks to a single tweet. "I have an advantage to covering medicine by not having an MD or PhD," she said.