|
|
by Lidal, Ingeborg Beate, Berg, Rigmor C., Austvoll-Dahlgren, Astrid, Straumann, Gyri Hval
Published 2015
“... respiratory tract infections by 6 to 23%. 3. reduces the number of physician consultations by 13 to 26%. 4...”Published 2015
Norwegian Knowledge Centre for the Health Services