Ovid Technologies (Firm). National Library of Medicine (U.S.). (1996). HealthStar [computer file]. Ovid Technologies.
Čikaški stil citiranja (17. izdanje)Ovid Technologies (Firm). National Library of Medicine (U.S.). HealthStar [computer File]. s.l: Ovid Technologies, 1996.
MLA način citiranja (9. izdanje)Ovid Technologies (Firm). National Library of Medicine (U.S.). HealthStar [computer File]. Ovid Technologies, 1996.
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