NAME	DESCRIPTION	LINK
Not Specified	Time Zero Event (TZ0) is not specified or not received. If no Time Zero Event value is received, then this is the system default value.	http://bioportal.bioontology.org/ontologies/PATO?p=classes&conceptid=http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FPATO_0000165
Other	Time Zero Event (TZ0) is the some Other time value not in CV Terms.	http://bioportal.bioontology.org/ontologies/PATO?p=classes&conceptid=http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FPATO_0000165
Time of enrollment	Time Zero Event (TZ0) is the Time of enrollment.	http://bioportal.bioontology.org/ontologies/PATO?p=classes&conceptid=http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FPATO_0000165
Time of infection	Time Zero Event (TZ0) is the Time of infection.	http://bioportal.bioontology.org/ontologies/PATO?p=classes&conceptid=http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FPATO_0000165
Time of initial treatment	Time Zero Event (TZ0) is the Time of initial treatment.	http://bioportal.bioontology.org/ontologies/PATO?p=classes&conceptid=http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FPATO_0000165
Time of initial vaccine administration	Time Zero Event (TZ0) is the Time of initial vaccine administration.	http://bioportal.bioontology.org/ontologies/PATO?p=classes&conceptid=http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FPATO_0000165
Time of transplantation	Time Zero Event (TZ0) is the Time of Transplantation.	http://bioportal.bioontology.org/ontologies/PATO?p=classes&conceptid=http%3A%2F%2Fpurl.obolibrary.org%2Fobo%2FPATO_0000165
