The document discusses different pharmacy environments including mail order pharmacies, long-term care facilities, home infusion pharmacies, and managed care. Mail order pharmacies dispense maintenance medications by mail for chronic conditions. Long-term care facilities provide care for geriatric and disabled patients through nursing homes and other institutions. Home infusion pharmacies deliver intravenous drugs and supplies directly to patients' homes. Managed care organizations like HMOs emphasize preventative care and controlling costs through approved drug formularies and clinical pharmacists working with primary physicians.