机构:
Univ Texas, Hlth Sci Ctr, Dept Med, Div Pulm & Crit Care, San Antonio, TX 78229 USAUniv Texas, Hlth Sci Ctr, Dept Med, Div Pulm & Crit Care, San Antonio, TX 78229 USA
机构:
Louisiana State Univ, Hlth Sci Ctr, Dept Internal Med, Div Pulm & Crit Care Med, Shreveport, LA 71103 USALouisiana State Univ, Hlth Sci Ctr, Dept Internal Med, Div Pulm & Crit Care Med, Shreveport, LA 71103 USA