an**\                                                           Europe                NS                 Elderly                                Older version \[[@pone.0000000.ref000]\]                                                                    Delphi                            P                             Medication appropriateness categories                 000                    00   0000 \[[@pone.0000000.ref000]\]                                                                                                                                                                                                                                                                                                                                                                                   **[Older version]{.ul}**\                                                                                                                                                                                                                                                                                                                                                                                        **K