About: http://webisa.webdatacommons.org/447019096

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	To ensure that each patient received whichever proved to be the better treatment in one eye, all 271 patients received both types of treatment, one type in each eye, as determined by chance or lottery (randomization).
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov