Lua APA (7ú heag.)

Ovid Technologies (Firm). National Library of Medicine (U.S.). (1996). HealthStar [computer file]. Ovid Technologies.

Lua i Stíl Chicago (17ú heag.)

Ovid Technologies (Firm). National Library of Medicine (U.S.). HealthStar [computer File]. s.l: Ovid Technologies, 1996.

Lua MLA (9ú heag.)

Ovid Technologies (Firm). National Library of Medicine (U.S.). HealthStar [computer File]. Ovid Technologies, 1996.

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