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Mohan UR, Hay AA, Cleary MA, Wraith JE, Patel RG.Mohan UR, et al. Among authors: hay aa.Acta Paediatr. 2002;91(7):799-804. doi: 10.1080/08035250213211.Acta Paediatr. 2002.PMID: 12200906
Gamble RG, Hay AA, Dunn JH, Dellavalle RP.Gamble RG, et al. Among authors: hay aa.Dermatol Reports. 2011 Jun 8;3(1):e6. doi: 10.4081/dr.2011.e6. eCollection 2011 Jan 31.Dermatol Reports. 2011.PMID: 25386261Free PMC article.
Peries A, Al-Hay AA, Shinebourne EA.Peries A, et al. Among authors: al hay aa.Cardiol Young. 2005 Aug;15(4):368-72. doi: 10.1017/S1047951105000788.Cardiol Young. 2005.PMID: 16014183
Hay SA, Hay AA, Moharram H, Salama M.Hay SA, et al. Among authors: hay aa.Surg Endosc. 2004 Mar;18(3):482-4. doi: 10.1007/s00464-003-9038-4. Epub 2004 Feb 2.Surg Endosc. 2004.PMID: 14752632Clinical Trial.