ls    ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------   Study                         Study method                              Participants                                                                           Country                                          Intervention arm                                                                                                      Control arm                                                                                               Target period (if applicable)   Outcome measures   ----------------------------- ----------------------------------------- -------------------------------------------------------------------------------------- ------------------------------------------------ --------------------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------- ------------------------------- -------------------------------------------------------------------------------------------------   Anaya *et al*[@R00]           Randomised controlled trail               Age: 00--00 years\                                                                     USA                                              Nurse 