sairaalakäynneilleen
sairaalakäynneilleen is a Finnish word that translates to "for his/her/their hospital visits" or "for his/her/their visits to the hospital." It is a possessive plural form of the noun "sairaalakäynti," which means "hospital visit." The suffix "-lleen" indicates the third-person possessive, referring to the visits belonging to someone or some group. This grammatical construction is used to express that the hospital visits are for a specific individual or individuals.
For example, in a sentence, "hän valmistautui sairaalakäynneilleen" would mean "he/she prepared for his/her hospital visits."