TB or not TB? Diagnostic difficulties in HIV-positive versus HIV-negative tuberculosis patients with an immigration background in Germany oleh Kerstin Ennemoser, Daman Deep Singh, Falk Hüttig, Colin MacKenzie, Irmela Müller-Stöver, Henrik Holtmann, Sunil José Kocheril, Martha C Holtfreter, Joachim Richter