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Open Access#12009

Ethics and observational studies in medical research: various rules in a common framework

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Open Access#22009

Ethics and observational studies in medical research: various rules in a common framework

BASE

Open Access#32009

Ethics and observational studies in medical research: various rules in a common framework

BASE

Open Access#42009

Ethics and observational studies in medical research: various rules in a common framework

BASE

Open Access#52009

Ethics and observational studies in medical research: various rules in a common framework

BASE

Open Access#62009

Ethics and observational studies in medical research: various rules in a common framework

BASE

Open Access#72009

Ethics and observational studies in medical research: various rules in a common framework

BASE

Open Access#82009

Ethics and observational studies in medical research: various rules in a common framework

BASE

Open Access#92009

Ethics and observational studies in medical research: various rules in a common framework

BASE