Risk for developing lung cancer for smokers varies due to all of the following except
a. inconsistently collected data.
b. variations in depth of inhalation of cigarette smoke.
c. factors like frequency of smoking and age of starting smoking.
d. other lifestyle risk factors.

Which of these gives the best indication that a health service is based on pseudoscience?

Ways to when your friend is going through social isolation?

An 80-year-old woman comes to the urgent care clinic with dyspnoea on exertion. on physical examination, her blood pressure is 100/70, and her pulse is 75. she has no pulsus paradoxus. her jugular veins are distended, and she has distant heart sounds. in addition, she has extra third and fourth heart sounds. her liver is enlarged, and she has pedal oedema. she has occasional premature ventricular contractions on her electrocardiogram. a chest x-ray reveals clear lung fields with a dilated cardiac silhouette. her echocardiogram reveals ventricular walls with a "speckled pattern". which of the following is the most likely diagnosis? - alcoholic cardiomyopathy- amyloidosis- haemochromatosis- tuberculosis- viral myocarditis