Guo Q, Liu S, Fu X, Tian X. An Empirical Study of the PERMA Model of Positive Psychological Intervention for Parents of Preterm Infants Hospitalized in NICU. JBLS [Internet]. 2025 May 23 [cited 2025 Oct. 6];16(2):119-31. Available from: https://macrojournal.org/index.php/jbls/article/view/2469