PMC:1087847 / 220-235 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T298","span":{"begin":7,"end":9},"obj":"IN"},{"id":"T299","span":{"begin":10,"end":14},"obj":"NN"},{"id":"T301","span":{"begin":14,"end":15},"obj":"HYPH"}],"text":"esence of Ca2+-"}