1 Center for Advanced Heart and Lung Disease, Baylor University Medical Center, Dallas, TX 75246, USA; Baylor Scott & White Research Institute, Dallas, TX, USA; Texas A&M Health Science Center, Dallas, TX, USA; Burnett School of Medicine at TCU, Fort Worth, TX, USA. Electronic address: robert.gottlieb@bswhealth.org.
2 Department of Infectious Diseases & FundaciĆ³ Lluita contra les Infeccions, Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain; IrsiCaixa AIDS Research Institute, Badalona, Catalonia, Spain; Center for Global Health & Diseases, Department of Pathology, Case Western Reserve University, Cleveland, OH, USA.