Petrie (2006) defines an experimental study as one: in which the investigator intervenes in some way to affect the outcome. Such studies are longitudinal and prospective; the investigator applies the intervention and observes the outcome some time later. © 2011 Springer-Verlag London Limited.
CITATION STYLE
Birch, R. (2011). Operating on peripheral nerves. In Surgical Disorders of the Peripheral Nerves (pp. 231–302). Springer London. https://doi.org/10.1007/978-1-84882-108-8_7
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