1. Gomella T, Cunningham MD, Eyal FG. Intrauterine growth retardation. In: Gomella T, Cunningham MD, Eyal FG, editors. Neonatology. New York: McGraw-Hill Medical Education, LLC; 2013. P. 732-42.
2. Liu L, Oza S, Hogan D, Chu Y, Perin J, Zhu J, et al. Global, regional, and national causes of under-5 mortality in 2000-15: an updated systematic analysis with implications for the Sustainable Development Goals. Lancet. 2016; 388(10063): 3027-35. 3. Blencowe H, Cousens S, Oestergaard MZ, Chou D, Moller AB, Narwal R, et al. National, regional, and worldwide estimates of preterm birth rates in the year 2010 with time trends since 1990 for selected countries: a systematic analysis and implications. Lancet. 2012; 379(9832):2162-72.
4. Montirosso R, Tronick E, Borgatti R. Promoting neuroprotective care in neonatal intensive care units and preterm infant development: insights from the neonatal adequate care for quality of life study. Child Dev Perspect. 2017; 11(1):9-15.
5. Cignacco E, Hamers JP, Stoffel L, van Lingen RA, Gessler P, McDougall J, et al. The efficacy of non-pharmacological interventions in the management of procedural pain in preterm and term neonates. A systematic literature review. Eur J Pain. 2007; 11(2):139-52.
6. Kugelman A, Colin AA. Late preterm infants: near term but still in a critical developmental time period. Pediatrics. 2013; 132(4):741-51.
7. Holsti L, Weinberg J, Whitfield MF, Grunau RE. Relationships between adrenocorticotropic hormone and cortisol are altered during clustered nursing care in preterm infants born at extremely low gestational age. Early Hum Dev. 2007; 83(5):341-8.
8. Chen Y, Baram TZ. Toward understanding how early-life stress reprograms cognitive and emotional brain networks. Neuropsychopharmacology. 2016;
41(1):197-206.
9. Cabral DM, Antonini SR, Custódio RJ, Martinelli CE Jr, da Silva CA. Measurement of salivary cortisol as a marker of stress in newborns in a neonatal intensive care unit. Horm Res Paediatr. 2013; 79(6):373-8.
10. Diego MA, Field T, Hernandez-Reif M. Preterm infant weight gain is increased by massage therapy and exercise via different underlying mechanisms. Early Hum Dev. 2014; 90(3):137-40.
11. Uvnäs-Moberg K, Handlin L, Petersson M. Self-soothing behaviors with particular reference to oxytocin release induced by non-noxious sensory stimulation. Front Psychol. 2014; 5:1529.
12. Pepino VC, Mezzacappa MA. Application of tactile/ kinesthetic stimulation in preterm infants: a systematic review. J Pediatr (Rio J). 2015; 91(3):213-33.
13. Pados BF, McGlothen-Bell K. Benefits of infant massage for infants and parents in the NICU. Nurs Womens Health. 2019; 23(3):265-71.
14. Wang L, He JL, Zhang XH. The efficacy of massage on preterm infants: a meta-analysis. Am J Perinatol. 2013; 30(9):731-8.
15. Asadollahi M, Jabraeili M, Mahallei M, Asgari Jafarabadi M, Ebrahimi S. Effects of gentle human touch and field massage on urine cortisol level in premature infants: a randomized, controlled clinical trial. J Caring Sci. 2016; 5(3):187-94.
16. Forclaz MV, Moratto E, Pennisi A, Falco S, Olsen G, Rodríguez P, et al. Salivary and serum cortisol levels in newborn infants. Arch Argent Pediatr. 2017; 115(3):262-6.
17. Okamura H, Kinoshita M, Saitsu H, Kanda H, Iwata S, Maeno Y, et al. Noninvasive surrogate markers for plasma cortisol in newborn infants: utility of urine and saliva samples and caution for venipuncture blood samples. J Clin Endocrinol Metab. 2014; 99(10):E2020-4.
18. Provenzi L, Giusti L, Fumagalli M, Tasca H, Ciceri F, Menozzi G, et al. Pain-related stress in the neonatal intensive care unit and salivary cortisol reactivity to socio-emotional stress in 3-month-old very preterm infants. Psychoneuroendocrinology. 2016; 72:161-5.
19. Calixto C, Martinez FE, Jorge SM, Moreira AC, Martinelli CE Jr. Correlation between plasma and salivary cortisol levels in preterm infants. J Pediatr. 2002; 140(1):116-8.
20. Montero-López E, Santos-Ruiz A, González R,
Navarrete-Navarrete N, Ortego-Centeno N, Martínez-Augustín O, et al. Analyses of hair and salivary cortisol for evaluating hypothalamic-pituitary-adrenal axis activation in patients with autoimmune disease. Stress. 2017; 20(6):541-8.
21. Gunnar MR. Reactivity of the hypothalamic-pituitary-adrenocortical system to stressors in normal infants and children. Pediatrics. 1992; 90(3 Pt 2):491-7.
22. Aliabadi F, Askary RK. Effects of tactile-kinesthetic stimulation on low birth weight neonates. Iran J Pediatr. 2013; 23(3):289-94.
23. Irwanto. Strategies of intervention for preterm infants to optimize growth and development. 2nd Symposium & Workshop Update Neonatal. Departemen Ilmu Kesehatan Anak Fakultas Kedokteran Universitas Airlangga/RSUD Dr Soetomo Surabaya, Indonesia; 2017. P. 25-46.
24. Schanberg SM, Field TM. Sensory deprivation stress and supplemental stimulation in the rat pup and preterm human neonate. Child Dev. 1987; 58(6):1431-7.
25. Lecuona E, Van Jaarsveld A, Raubenheimer J, Van Heerden R. Sensory integration intervention and the development of the premature infant: a controlled trial. South Afr Med J. 2017; 107(11):976-82.
26. Feldman R, Singer M, Zagoory O. Touch attenuates infants’ physiological reactivity to stress. Dev Sci. 2010; 13(2):271-8.
27. Neu M, Pan Z, Workman R, Marcheggiani-Howard C, Furuta G, Laudenslager ML. Benefits of massage therapy for infants with symptoms of gastroeso-phageal reflux disease. Biol Res Nurs. 2014; 16(4):387-97.
28. Guzzetta A, Baldini S, Bancale A, Baroncelli L, Ciucci F, Ghirri P, et al. Massage accelerates brain development and the maturation of visual function. J Neurosci. 2009; 29(18):6042-51.
29. Acolet D, Modi N, Giannakoulopoulos X, Bond C, Weg W, Clow A, et al. Changes in plasma cortisol and catecholamine concentrations in response to massage in preterm infants. Arch Dis Child. 1993; 68(1 Spec No):29-31.
30. Im H, Kim E. Effect of Yakson and Gentle Human Touch versus usual care on urine stress hormones and behaviors in preterm infants: a quasi-experimental study. Int J Nurs Stud. 2009; 46(4):450-8.