Development and feasibility testing of an integrated PTSD and adherence intervention cognitive processing therapy-life steps (CPT-L) to improve HIV outcomes: Trial protocol oleh Cristina M. Lopez, Nathaniel L. Baker, Angela D. Moreland, Erin Bisca, Tayler Wilson, Nathalie Slick, Carla Kmett Danielson, Allison R. Eckard, Mohan Madisetti, Patricia A. Resick, Steven A. Safren