APA (7th ed.) Citation

Heyns, C. F., & Merwe, A. v. d. Prostate specific antigen — brief update on its clinical use. AOSIS.

Chicago Style (17th ed.) Citation

Heyns, Christiaan F., and André van der Merwe. Prostate Specific Antigen — Brief Update on Its Clinical Use. AOSIS.

MLA (9th ed.) Citation

Heyns, Christiaan F., and André van der Merwe. Prostate Specific Antigen — Brief Update on Its Clinical Use. AOSIS.

Warning: These citations may not always be 100% accurate.