1. Infected needles
2. Insect bite
3. Organ transplant
4. Blood transfusion
~Hello there! ^_^
Your question: The most important consideration when choosing a contraceptive method for yourself is the..?
Your answer: The most important consideration when choosing a contraceptive method for yourself is the method you will use to consistently and accurately.
Hope this helps! :D
The liver. it processes the alcohol