Toledo Gotor C, García Muro C, Pérez García MA, Ruiz del Prado MY. Non-pharmacological analgesia during the heel lance procedure in newborns. Application in other painful procedures. Rev Pediatr Aten Primaria. 2021;23:e11-e16.

García Sánchez N, Merino Moína M, García Vera C, Lacarta García I, Carbonell Muñoz L, Pina Marqués B, et al. Relief of pain and distress during immunizations. Synthesis of evidence. Recommendations of the Advisory Committee on Vaccines of the Spanish Association of Paediatrics. Rev Pediatr Aten Primaria. 2015;17:317-27.

González Rodríguez P. Diminishing pain during venipunctures in children. Rev Pediatr Aten Primaria. 2006;8:127-138.

del Castillo Codes M, Delgado Martínez AD. Pain syndromes of the foot children. Rev Pediatr Aten Primaria. 2001;3:67-84.