While the criteria used to identify a child's risk were refined, children in a given risk stratum received similar treatment protocols over the course of the study.
We did not observe any adverse effects of any treatment protocol in the mice over the study period of 28 days.
Once a participant was enrolled, an in-house appointment was made to go over the study protocol and train the parents/caregivers on how to collect specimens and 24-hr duplicate food samples.
Once a subject was enrolled, an in-house appointment was made to go over the study protocol and to obtain written consent from parents and older children, or oral assent from younger children.
Briefly, at visit 1, participants met with the practice nurse to go over the study protocol, discussed their present health with the GP, completed informed consent and questionnaires and were fitted with a sealed pedometer (so that participants were unaware of their step counts before being given the intervention) and an activPAL.
At visit 1, participants met with the practice nurse to go over the study protocol, discussed their present health with the general practitioner, completed informed consent and questionnaires and were fitted with a sealed pedometer (so that participants were unaware of their step counts before being given the intervention) and an activPAL.
Once a participant was enrolled, an in-house appointment was made to go over the study protocol, to train the parents/caregivers on how to collect specimen samples, and to obtain written consent from parents and older children or oral assent from younger children.
DNA extraction and sequencing success varied with the source of the tissue, the mode of preservation, and with the species group, but we did not track success rates due to changes in analytical protocols over the four years of this study.
Epidemiologic study protocols must consider the study specific aims, diagnostic changes that have taken place over time, and other issues unique to the type(s) of tumor being studied.
Before implementation of the protocol, the local institutional review board(s) that had jurisdiction over the study population reviewed and approved the study protocol.
