U. Nandhini, A. Vedachalam, K. P.P, and V. S, “Phenomenology and severity of symptoms in OCD patients after COVID 19”, Ind Jnl Ment Health Nsci, vol. 4, no. 1, pp. 18–22, Sep. 2021, doi: 10.32746/ijmhns.2021.v4.i1.49.