1. Circulatory function in younger and older humans in health;Lakatta,1999
2. The cardiovascular system. Heart failure;Rich,1999
3. Benefits of exercise for community-dwelling older adults;Bean;Arch Phys Med Rehabil,2004
4. Valvular disease (endocardiosis in dogs);Buchanan;Adv Vet Sci Comp Med,1979
5. The prevalence and types of cardiovascular diseased in dogs;Detweiler;Ann NY Acad Sci,1965