Novak B. is a 55-year-old man with a history of type 2 diabetes mellitus, hypertension and hyperlipidemia. He presents himself at your office because he has been experiencing chest pain for several days, but has been reluctant to come to the office. He first noted it 6 weeks ago while shoveling snow. The discomfort was mid-sternal and radiated to his jaw. It resolved with rest. Since then, he has noted 3 similar episodes each occurring while climbing the 2 flights of stairs from his basement to the bedroom. Upon further questioning, he also tells you that he feels cramps in both of his calves whenever he walks for more than 500 meters. If he stops walking, his symptoms resolve within 2-3 minutes. On examination, he is mildly obese. His pedal artery and posterior tibial artery pulses are significantly decreased in volume bilaterally. The remainder of the examination is normal. You diagnose him with angina and prescribe aspirin, a beta-blocker, a statin and nitroglycerin. You also make a referral to a dietician.