Many of the core functions of primary health care are central to chronic care. Chronic care is complex in nature because it may extend over a pro-longed period of time, requires input from a diverse set of health professionals, various medications and possibly monitoring equipment.
The statement highlights the interconnectedness between primary healthcare and chronic care. It emphasizes that the core functions of primary healthcare are fundamental for managing chronic conditions effectively.  It also points out the complexity of chronic care due to its long-term nature, multidisciplinary approach, medication use, and potential need for monitoring.