title: [Aspects of background and discussion of qualitative research on the validity as scientific methodology].
authors: K
authors: K
authors: Sebata
authors: Y
authors: Y
authors: Sugisawa
authors: J
authors: J
authors: Otaki
authors: M
authors: M
authors: Maezawa
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D012106:Research / Q000592:standards*; D012107:Research Design