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Andersson A-M, Toppari J, Haavisto AM, Petersen JH, Simell T, et al. (1998) Longitudinal reproductive hormone profiles in infants: peak of inhibin B levels in infant boys exceeds levels in adult men. <i>J Clin Endocrinol Metab<\/i> 83: 675-681."},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Boas M, Boisen K, Virtanen H, Kaleva M, Suomi A, et al. (2006) Postnatal penile length and growth rate correlate to serum testosterone levels: a longitudinal study of 1962 normal boys. <i>Eur J Endocrinol<\/i> 154: 125-129.","DOI":"10.1530\/eje.1.02066"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3. Cheng PK, Chanoine JP (2001) Should the definition of micropenis vary according to ethnicity? <i>Horm Res<\/i> 55: 278-281.","DOI":"10.1159\/000050013"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4. 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