The clinical utility of faecal calprotectin in patients with differentiated and undifferentiated spondyloarthritis: Relevance and clinical implications Yasser Emad; Yasser Ragab; Nevin Hammam; Nashwa El-Shaarawy; Magdy Fawzi; Arwa Amer; Hesham El-Makhzangy; Ahmed Ismail; Ossama Ibrahim; Yosra Hassan; Ahmed Kamal; Johannes J. Rasker;

Autoantibodies to extractable nuclear antigens (ENAs) pattern in rheumatoid arthritis patients: Relevance and clinical implications Yasser Emad; Yasser Ragab; Nevin Hammam; Nashwa El-Shaarawy; Ossama Ibrahim; Rania M. Gamal; Magdy Abd-Elsalam; Reem H.A. Mohammed; Mona Hawass; Johannes J. Rasker;

Antisynthetase syndrome complicating the course of established case with rheumatoid arthritis: A rare and under-recognized overlapping disease Yasser Emad; Yasser Ragab; Magdy Abd-Elsalam; Johannes J. Rasker;