The role of a GP can vary greatly between countries. In urban areas of developed countries their roles tend to be narrower and focused on the care of chronic health problems; the treatment of acute non-life-threatening diseases; the early detection and referral to specialised care of patients with serious diseases; and preventative care including health education and immunisation. Meanwhile, in rural areas of developed countries or in developing countries a GP may be routinely involved in pre-hospital emergency care, the delivery of babies, community hospital care and performing low-complexity surgical procedures. In some healthcare systems GPs work in primary care centers where they play a central role in the healthcare team, whi