Use a thick 18–21 gauge needle, 1 to 1.5 inches long, to draw testosterone from
Use a thick 18–21G needle to draw your testosterone, then switch to a thinner one
Use a thick 18–21 gauge needle, 1 to 1.5 inches long, to draw testosterone from
Use a thick 18–21G needle to draw your testosterone, then switch to a thinner one