VISIT_INFO_SOURCE = (
    ('Clinic visit w/ subject', 'Clinic visit with participant'),
    ('Other contact w/ subject', 'Other contact with participant (i.e telephone call)'),
    ('Contact w/ health worker', 'Contact with health care worker'),
    ('Contact w/ family/design', 'Contact with family or designated person who can provide information'),
    ('OTHER', 'Other,specify'),
)
PARTICIPANT_STATUS_CHOICE = (
    ('On study', 'On study'),
    ('Off study', 'Off study'),
    ('Going off study at this visit', 'Going off study at this visit'),
)
VISIT_REASON = (
    ('Quarterly visit/contact', 'Quarterly visit/contact'),
    ('Unscheduled visit/contact', 'Unscheduled visit/contact'),
    ('Missed quarterly visit', 'Missed quarterly visit'),
    ('Lost to follow-up', 'Lost to follow-up (use only when taking subject off study)'),
    ('Death', 'Death'),
    ('off study', 'Off study'),
    ('deferred', 'Deferred'),
)
VISIT_UNSCHEDULED_REASON = (
    ('Routine oncology', 'Routine oncology clinic visit (i.e. planned chemo, follow-up)'),
    ('Ill oncology', 'Ill oncology clinic visit'),
    ('Patient called', 'Patient called to come for visit'),
    ('OTHER', 'Other, specify:'),
)
