[1] Univ Putra Malaysia, Fac Med & Hlth Sci, Dept Paediat, Serdang 43400, Selangor, Malaysia
[2] Danone Nutricia Res, Singapore, Singapore
[3] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Paediat, Singapore, Singapore
[4] Univ Sains Malaysia, Sch Med Sci, Dept Paediat, Kota Baharu, Kelantan, Malaysia
[5] Univ Malaya, Fac Med, Dept Paediat, Kuala Lumpur, Malaysia
[6] Pantai Hosp Kuala Lumpur, Allergy & Immunol Ctr, Kuala Lumpur, Malaysia
[7] Univ Sains Malaysia, Sch Med Sci, Dept Immunol, Kota Baharu, Kelantan, Malaysia
[8] Danone Nutricia Res, Utrecht, Netherlands
[9] Wageningen Univ, Wageningen, Netherlands
[10] Univ Sains Malaysia, Sch Med Sci, Dept Med, Kota Baharu, Kelantan, Malaysia
[11] Univ New South Wales, St George & Sutherland Clin Sch, Sydney, NSW, Australia
[12] Univ Kebangsaan Malaysia, Fac Med, Gut Res Grp, Kuala Lumpur, Malaysia