Anderson SE, Dallal GE, Must A. Relative weight and race influence average age at menarche: results from two nationally representative surveys of US girls studied 25 years apart. Pediatrics. April 2003, 111 (4 Pt 1): 844–50. ISSN 0031-4005. PMID 12671122. doi:10.1542/peds.111.4.844.
Anderson SE, Dallal GE, Must A. Relative weight and race influence average age at menarche: results from two nationally representative surveys of US girls studied 25 years apart. Pediatrics. April 2003, 111 (4 Pt 1): 844–50. ISSN 0031-4005. PMID 12671122. doi:10.1542/peds.111.4.844.
Anderson SE, Dallal GE, Must A. Relative weight and race influence average age at menarche: results from two nationally representative surveys of US girls studied 25 years apart. Pediatrics. April 2003, 111 (4 Pt 1): 844–50. ISSN 0031-4005. PMID 12671122. doi:10.1542/peds.111.4.844.