Population-based versus hospital-based controls: are they comparable? Controles poblaciones frente a controles hospitalarios: ¿son comparables?
Objective: To compare whether there are differences among hospital and population controls. Methods: Two case-control studies were conducted on lung cancer risk factors in the Santiago de Compostela Public Health District. Whereas one used randomly chosen census-based population controls, the other...
I tiakina i:
| Ngā kaituhi matua: | , , |
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| Hōputu: | Pukapuka |
| I whakaputaina: |
Elsevier,
2008-12-01T00:00:00Z.
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| Ngā marau: | |
| Urunga tuihono: | Connect to this object online. |
| Ngā Tūtohu: |
Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!
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Ipurangi
Connect to this object online.3rd Floor Main Library
| Tau karanga: |
A1234.567 |
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| Tārua 1 | Wātea |