1. Section
     Social History Section (2.16.840.1.113883.10.20.22.2.17)
    1. Entry
       Social History Observation (2.16.840.1.113883.10.20.22.4.38)
    2. Entry
       Pregnancy Observation (2.16.840.1.113883.10.20.15.3.8)
      1. Entry
         Estimated Date of Delivery (2.16.840.1.113883.10.20.15.3.1)
    3. Entry
       Smoking Status Observation (2.16.840.1.113883.10.20.22.4.78)
    4. Entry
       Tobacco Use (2.16.840.1.113883.10.20.22.4.85)