Few men use the most effective erection drugs because they must be self-injected into the penis. Few men are willing, but ...

To compare EI with needle injection through these conventional routes, we used a formalin-inactivated Aichi/68 influenza virus to immunize BALB/c mice (n = 8 per group). For EI, the vaccine was ...

High viscosity solutions, however, pose new challenges both at the technical level—for example, with respect to needle size and the force needed to administer the injection—and at the patient ...

This study demonstrated that 32-G 5-mm needles can be reliably inserted into subcutaneous fat, are relatively pain free, and are associated with minimal leakage from the injection site.