smiling american doctor woman in medical gown hold electro cardiogram record, heart ekg chart of wave in paper 

abnormal african afro american analysis background black blue brown business cardiogram cardiovascular care chart consultant consulting dark disease doctor echo echocardiogram echocardiography ekg electrocardiogram emergency ethnic female graph health heart hospital job medic medical nurse paper people person profession rate record sinus skin studio tachycardia therapist treatment wave white woman