if (email == "" || email == "E-mail address") { alert('Please enter an email address!'); return false; } var emailRegExp = new RegExp("[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?"); if (!emailRegExp.test(email) || email.indexOf('.') == -1) { alert('The email address that you entered is invalid!'); return false; } return true; }

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Vande Berg, B.C., Gilon, R., Malghema, J., Lecouvet, F., Depresseux, G. and Houssiau, F.A. (2006) Correlation between baseline femoral neck marrow status and the development of femoral head osteonecrosis in corticosteroid-treated patients: A longitudinal study by MR imaging. European Journal of Radiology, 58, 444-449. doi:10.1016/j.ejrad.2006.01.009

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