Formulation and evaluation of controlled release ethylcellulose and polyethylene glycol microspheres containing metoprolol tartrate / Venkata Ramana Malipeddi, Rajendra Awasthi, Kamal Dua Bibliogr.: p. 66-67. - Abstr. eng. In: Interventional Medicine and Applied Science. - ISSN 2061-1617, eISSN 2061-5094. - 2016. 8. évf. 2. sz., p. 60-67. : ill.