old_contents: from BasicInfo import BasicInfo
  from BloodExam import BloodExam
  from BloodExam import BloodParasite
  from Child import Child
  from ChildForm import ChildForm
  from DentalExam import DentalExam
  from DentalExam import DentalExamDiagnosis
  from MedicalExamPart1Info import MedicalExamPart1Info
  from MedicalExamPart2Info import MedicalExamPart2Info
  from MedicalExamPart2Info import MedicalExamDiagnosis
  from PsychologicalExamInfo import PsychologicalExamInfo
  from PsychologicalExamInfo import PsychologicalExamDiagnosis
  from Residence import Residence
  from SocialExamInfo import SocialExamInfo
  
new_contents: from BasicInfo import BasicInfo
  from BloodExam import BloodExam
  from BloodExam import BloodParasite
  from Child import Child
  from ChildForm import ChildForm
  from DentalExam import DentalExam
  from DentalExam import DentalExamDiagnosis
  from MedicalExamPart1Info import MedicalExamPart1Info
  from MedicalExamPart2Info import MedicalExamPart2Info
  from MedicalExamPart2Info import MedicalExamDiagnosis
  from PsychologicalExamInfo import PsychologicalExamInfo
  from PsychologicalExamInfo import PsychologicalExamDiagnosis
  from Residence import Residence
  from SocialExamInfo import SocialExamInfo
  from ConsultationHistory import ConsultationHistory
  from DiseaseHistory import DiseaseHistory
  from OperationHistory import OperationHistory
  
subject: Include history in the models.