Solid-phase microextraction and the human fecal VOC metabolome.
Dixon E, Clubb C, Pittman S, Ammann L, Rasheed Z, Kazmi N, Keshavarzian A, Gillevet P, Rangwala H, Couch RD. Solid-phase microextraction and the human fecal VOC metabolome. PLoS One. 2011 Apr 08; 6(4):e18471.