Herawati, Isnaini; Hapsari, Dela Oktavia (Proceedings of ISETH 2017 (The 3rd International Conference on Science, Technology, and Humanity), 2017-12-13)
Lower respiratory tract infections are a serious public health problem in Indonesia. In 2007, the number of people infected with bronchitis is about 1.6 million people and the prevalence has not changed significantly since ...