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FOLTZ EL, KNOPP LM, WARD AA Jr.FOLTZ EL, et al. Among authors: knopp lm.J Neurosurg. 1959 Jan;16(1):55-67. doi: 10.3171/jns.1959.16.1.0055.J Neurosurg. 1959.PMID: 13621265No abstract available.
FOLTZ EL, KNOPP LM, WARD AA Jr.FOLTZ EL, et al. Among authors: knopp lm.J Neurosurg. 1956 Sep;13(5):469-78. doi: 10.3171/jns.1956.13.5.0469.J Neurosurg. 1956.PMID: 13367882No abstract available.
WARD AA Jr, FOLTZ EL, KNOPP LM.WARD AA Jr, et al. Among authors: knopp lm.J Neurosurg. 1956 May;13(3):248-58. doi: 10.3171/jns.1956.13.3.0248.J Neurosurg. 1956.PMID: 13320172No abstract available.