Citation: Rl. Barkin et D. Barkin, Pharmacologic management of acute and chronic pain: Focus on drug interactions and patient-specific pharmacotherapeutic selection, SOUTH MED J, 94(8), 2001, pp. 756-770
Citation: D. Barkin, The economic impacts of ecotourism: Conflicts and solutions in highland Mexico, TOURISM AND DEVELOPMENT IN MOUNTAIN REGIONS, 2000, pp. 157-171