… and possible ways forward. In other words, they're the people you want to hear from when the question is ‘Where do we go from here?’” Ruth Purtilo, BS, MTS, PhD, FAPTA, professor emerita at MGH Institute of … and possible ways forward. In other words, they're the people you want to hear from when the question is ‘Where do we go from here?’” Ruth Purtilo, BS, MTS, PhD, …