Billing: the key ingredients.
D000066:Accounting; D000067:Accounts Payable and Receivable; D003625:Data Collection; D004526:Efficiency; D005376:Financial Management / Q000379:methods*; D005377:Financial Management, Hospital / Q000379:methods*; D007344:Insurance Claim Reporting / Q000379:methods; D010350:Patient Credit and Collection / Q000379:methods; D013997:Time Factors; D014481:United States