<http://webisa.webdatacommons.org/prov/17397115>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/222116814> .
<http://webisa.webdatacommons.org/222116814>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<pubmedcentralcanada.ca> .
<http://webisa.webdatacommons.org/222116814>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/222116814>	<http://www.w3.org/ns/prov#value>	"Pregnancy is an issue whereby alloreactivity needs to be controlled, as the mother???s T cells might respond to paternal MHC antigens of the fetus, but a number of structural barriers and suppressive factors reduce the impact of that reaction." .