“…Shapira-Galitz et al 30 suggested a possibility of assessment bias at the time when the researchers needed to read the questionnaire for patients over the phone. D’Ottaviano et al, 31 Leder et al, 22 Mandysova et al, 21 Marian et al, 32 Gozzer et al, 33 Imaizumi et al, 34 Schröder et al, 35 Pilz et al, 36 Somasundaram et al, 37 Souza et al, 38 Souza et al, 39 Umay et al, 40 and Farneti et al 41 did not describe the bias assessment.…”