[No standard fits every patient. Time interval in alternating position].
de Jong
N
N
de Winter
A
A
Halfens
R
R
Buss
I
I
D000368:Aged; D000375:Aging / Q000502:physiology; D006801:Humans; D011187:Posture; D011312:Pressure; D003668:Pressure Ulcer / Q000503:physiopathology* / Q000517:prevention & control*; D013997:Time Factors