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BC science 9 textbook
Author:Lionel Sander, Glen Fatkin, Donald Lacy, Josef Martha, James Milross, Karen Naso

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http://www.cancer.ca/en/cancer-information/cancer-type/prostate/signs-and-symptoms/?region=bc
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http://www.pcf.org/site/c.leJRIROrEpH/b.5800851/k.645A/Prostate_Cancer_FAQs.htm
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http://www.cancer.org/acs/groups/cid/documents/webcontent/003134-pdf.pdf
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http://www.cancer.org/cancer/prostatecancer/detailedguide/prostate-cancer-treating-general-info
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http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/Prostate_cancer
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https://www.nichd.nih.gov/health/topics/down/conditioninfo/Pages/symptoms.aspx
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http://kidshealth.org/parent/medical/genetic/down_syndrome.html
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