David Small

Uses and misuses of oxygen in hospitalized patients.

Aalo Duha, D. Laporta, B. Wieskopf, 1992, The American journal of medicine.

Evaluation of right ventricular systolic pressure during incremental exercise by Doppler echocardiography in adults with atrial septal defect.

H. Kreisman, D. Langleben, N. Wolkove, 1998, Chest.