Schamroth, L., & Schamroth, C. An introduction to electro cardiography (seven edition.).
Lua i Stíl Chicago (17ú heag.)Schamroth, Leo, agus Colin Schamroth. An Introduction to Electro Cardiography. seven edition.
Lua MLA (8ú heag.)Schamroth, Leo, agus Colin Schamroth. An Introduction to Electro Cardiography. seven edition.
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