Rob can't find much time to exercise, but he knows he has to do some activity to keep his heart healthy. which of the following is most likely to benefit him, if he remains in his target heart rate zone?
biking to the convenience store (5 minutes)
running to work instead of driving (20 minutes)
swimming after school (10 minutes)
lifting weights while on the phone (30 minutes)

Adouble-blinded trial for a new indication is conducted under an ind comparing two (2) marketed drugs, at twice the approved prescribed doses. on day 2, subject 603 had difficulty breathing. although it was life-threatening initially, subject 603 was treated and discharged directly from the emergency department after complete recovery. on day 5, subject 20 had a headache, which led to hospitalization and required blood pressure lowering medications. these episodes cannot be explained on the basis of the pharmacological property of either drug or the subjects' medical histories. the investigator would submit an sae report for