Novick D, Montgomery WS, Aguado J, Peng X, Brugnoli R, Haro JM. Which somatic symptoms are associated with an unfavorable course in Chinese patients with major depressive disorder? Asia Pac Psychiatry. 2015 Dec;7(4):427-35. doi: 10.1111/appy.12189
Pladevall M, Arana A, Varas-Lorenzo C. Systematic reviews and meta-analyses in ischemic cardiopathy. Cardiovasc Risk Fact. 2000;4:270-81.
Pladevall-Vila M, Arana A, Varas-Lorenzo C. Systematic reviews and meta-analysis on coronary heart disease. (Revisiones sistemáticas y meta-análisis en cardiopatía isquemica). Cardiovasc Risk Fact. 2000;4:270-81.
Cann CI, Fried MP, Rothman KJ. Epidemiology of squamous-cell cancer of the head and neck. Otolaryngol Clin N Am. 1985 Aug 1;18(3):367-88.