PubMed:6250708 / 489-577
Annnotations
Test-Species-PubTator
{"project":"Test-Species-PubTator","denotations":[{"id":"15","span":{"begin":13,"end":15},"obj":"Species"}],"text":"Both pOT and tk sequences may be amplified up to 20-200 copies of the SV40 early region."}
GlyCosmos15-Sentences
{"project":"GlyCosmos15-Sentences","blocks":[{"id":"T5","span":{"begin":0,"end":88},"obj":"Sentence"}],"text":"Both pOT and tk sequences may be amplified up to 20-200 copies of the SV40 early region."}