[CARDIAC AUSCULTATION. VI. 1ST CARDIAC SOUND].
D001314:Auscultation; D006326:Heart Auscultation; D006347:Heart Sounds; D006801:Humans; D010827:Physiology; D013016:Sound
HEART AUSCULTATION; PHYSIOLOGY
AUSCULTACI'ON CARD'IACA. VI. PRIMER RUIDO NORMAL.