[Are stages 1 and 2 ulcers always caused by pressure?].
Marco A
MA
Zapata Sampedro
Laura
L
Castro Varela
Rocío
R
Tejada Caro
D018450:Disease Progression; D006801:Humans; D003668:Pressure Ulcer / Q000145:classification; D012720:Severity of Illness Index; D012883:Skin Ulcer / Q000145:classification / Q000209:etiology*