injektioretkkojen

Could you please clarify what you mean by "injektioretkkojen"? I’m not sure of the exact meaning or context of this Finnish term. Is it a medical concept, a technical term, a misspelling, or a fictional/creative concept? If you can provide a little context (for example, the field it relates to and the intended audience), I can write a concise, neutral wiki-style article under 300 words.