Ghasemi, saeed, Hosseini, meimanat, AlaviMajd, hamid, Manochehri, hooman and Norozi, zahra 2015. Comparison of perceived family structure of mothers with a disabled boy and mothers with a boy without disabilities upon circumplex model in Tehran in 1390. Advances in Nursing & Midwifery. 25, 88 (Aug. 2015), 1–8.