[A survey of the environment of children who were found to have difficulty in toilet training at the health examination at age 3].
Isogai
K
K
Kurahashi
H
H
Osuga
K
K
Kojima
S
S
Takayama
H
H
D002675:Child, Preschool; D006801:Humans; D012931:Social Environment; D014039:Toilet Training