Collins, G., & Altman, D. (2009). QRISK validation and evaluation Authors' reply.
Lua i Stíl Chicago (17ú heag.)Collins, G., agus D. Altman. QRISK Validation and Evaluation Authors' Reply. 2009.
Lua MLA (9ú heag.)Collins, G., agus D. Altman. QRISK Validation and Evaluation Authors' Reply. 2009.
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