Understanding Communication in Healthcare to Achieve Trust (U-CHAT)

Inclusion Criteria - Primary Oncologist:

* Primary oncologist is an attending physician (age 18+) who provides medical care to patients in the outpatient Solid Tumor or Neuro-Oncology clinics at St. Jude Children's Research Hospital.
* Primary hematology-oncology fellows (age 18+) who follow patients along with the primary oncologist will be eligible to participate in audio-recorded disease reevaluation conversations (and fellow contributions will be distinguished from primary oncologist contributions); however, they will not be eligible to complete post-conversation surveys nor semi-structured interviews.

Inclusion Criteria - Parents of Children with Cancer:

* Caregiver is 18 years of age or older.
* Caregiver is related to the patient in one of the following ways: biological parent, stepparent, or primary legal guardian.
* If more than 1 set of parents are involved, the caregiver with legal decision-making responsibilities will be eligible for participation.
* Caregiver is comfortable speaking and reading English.

Inclusion Criteria - Patients:

* Patient's primary oncologist is enrolled in this study.
* Patient (age ≤30 years) has been diagnosed with either a solid tumor and/or a brain tumor.
* Patient's primary pediatric oncologist documents or reports his/her impression that patient's likelihood of cure is 50% or less.
* Patient is projected to have ≥ 2 future time points of disease reevaluations, as documented in the electronic medical record (EMR) and/or confirmed by the patient's primary oncologist.
* Patient is being treated for one of the above high-risk diseases with \<3 months until end-of-therapy disease evaluation, OR
* Patient's disease has relapsed, progressed, or not responded to therapy, as documented in the EMR and/or confirmed by the child's pediatric oncologist OR
* Patient is being treated for a uniformly fatal disease, such as diffuse intrinsic pontine glioma, or a disease in which the primary oncologist believes that the patient will almost certainly die, such as glioblastoma multiforme.

Inclusion Criteria - Non-Primary Oncologist Care Team Members, Patient's Extended Family Member, or Friend of the Family:

* Patient's primary oncologist is enrolled on the study.
* Patient's caregiver is enrolled on the study.
* Patient's caregiver has given verbal permission for non-primary oncologist clinical members of the patient's care team, the extended family member, or friend of the family to be present during the conversation between the patient's primary oncologist and the patient's caregiver.
* any non-primary oncologist members of the patient's clinical care team, the extended family members, or friends of the family (all age 18+ years) have all given verbal consent to be audio-recorded prior to the beginning of the conversation, in case they speak during the conversation between patient's primary oncologist and the patient's caregiver.

Exclusion Criteria:

* Implicitly stated in above inclusion criteria.
* Inability or unwillingness of potential research participant or legal guardian/representative to give informed consent.