"The high prevalence of "soft" bipolar (II) features in atypical depression". Comprehensive Psychiatry. 39 (2): 63-71. 1998. doi:10.1016/S0010-440X(98)90080-3. PMID9515190.
"[Overlap between atypical depression, seasonal affective disorder and chronic fatigue syndrome]" [Overlap between atypical depression, seasonal affective disorder and chronic fatigue syndrome]. Revista Brasileira de Psiquiatria (Portekizce). 29 Suppl 1: S19-S26. May 2007. doi:10.1590/S1516-44462007000500005. PMID17546343.
"The high prevalence of "soft" bipolar (II) features in atypical depression". Comprehensive Psychiatry. 39 (2): 63-71. 1998. doi:10.1016/S0010-440X(98)90080-3. PMID9515190.
"[Overlap between atypical depression, seasonal affective disorder and chronic fatigue syndrome]" [Overlap between atypical depression, seasonal affective disorder and chronic fatigue syndrome]. Revista Brasileira de Psiquiatria (Portekizce). 29 Suppl 1: S19-S26. May 2007. doi:10.1590/S1516-44462007000500005. PMID17546343.