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Referrals to physician specialties over 2006-2011
| (a) Top 5 specialties. |
| Cardiovascular disease |
| Internal medicine |
| Family practice |
| Interventional cardiology |
| Pulmonary disease |
| (b) Top 5 cross-specialty referrals. |
| Internal medicine → cardiovascular disease |
| Cardiovascular disease → internal medicine |
| Family practice → cardiovascular disease |
| Cardiovascular disease → family practice |
| Internal medicine → family practice |
