Error of omission.
Waldman
H B
HB
D003752:Dental Health Services / Q000706:statistics & numerical data*; D003815:Dentists / Q000706:statistics & numerical data*; D004526:Efficiency; D006801:Humans; D011215:Practice Management, Dental / Q000706:statistics & numerical data; D011331:Private Practice / Q000706:statistics & numerical data; D013997:Time Factors; D014481:United States