Schematic diagram of healthy subjects’ abdominal subcutaneous injection of RODD.
A and D are the distribution designs of single-needle and multineedle injection areas under the abdomen skin, which were areas Ⅰ~Ⅵ and Ⅰ~Ⅳ, respectively. B and C are examples of single-needle injection points and needle test points; E and F are examples of multineedle injection points and acupuncture test points on a circle, respectively.The test methods are shown in 