{"study":"MRC-1","year":1974,"d.asp":49,"n.asp":615,"d.plac":67,"n.plac":624}
{"study":"CDP","year":1976,"d.asp":44,"n.asp":758,"d.plac":64,"n.plac":771}
{"study":"MRC-2","year":1979,"d.asp":102,"n.asp":832,"d.plac":126,"n.plac":850}
{"study":"GASP","year":1979,"d.asp":32,"n.asp":317,"d.plac":38,"n.plac":309}
{"study":"PARIS","year":1980,"d.asp":85,"n.asp":810,"d.plac":52,"n.plac":406}
{"study":"AMIS","year":1980,"d.asp":246,"n.asp":2267,"d.plac":219,"n.plac":2257}
{"study":"ISIS-2","year":1988,"d.asp":1570,"n.asp":8587,"d.plac":1720,"n.plac":8600}