Peptic ulcer disease: introduction. Peptic ulcer disease: introduction. Postgraduate medicine Ryan AJ. PMID: 634870 Postgrad Med. 1978 Apr;63(4):81. doi: 10.1080/00325481.1978.11714806. No abstract available. Share Share on social media Direct link Direct link Cite Cite AMA Ryan AJ. Peptic ulcer disease: introduction. Postgrad Med. 1978;63(4):81doi: 10.1080/00325481.1978.11714806. APA Ryan, A. J. (1978). Peptic ulcer disease: introduction. Postgraduate medicine, 63(4), 81. https://doi.org/10.1080/00325481.1978.11714806 MLA Ryan, A J. "Peptic ulcer disease: introduction." Postgraduate medicine vol. 63,4 (1978): 81. doi: https://doi.org/10.1080/00325481.1978.11714806 NLM Ryan AJ. Peptic ulcer disease: introduction. Postgrad Med. 1978 Apr;63(4):81. doi: 10.1080/00325481.1978.11714806. PMID: 634870. Copy Download .nbib Format: NLM AMA APA MLA NLM
