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Nielsen HK, May O, Ravlo O, Bach V.Nielsen HK, et al. Among authors: may o.Acta Anaesthesiol Belg. 1990;41(4):313-7.Acta Anaesthesiol Belg. 1990.PMID: 2085083Clinical Trial.
Nielsen HK, May O.Nielsen HK, et al. Among authors: may o.Anaesthesist. 1994 Aug;43(8):528-33. doi: 10.1007/s001010050088.Anaesthesist. 1994.PMID: 7978176Clinical Trial.German.
Lybecker H, Møller JT, May O, Nielsen HK.Lybecker H, et al. Among authors: may o.Anesth Analg. 1990 Apr;70(4):389-94. doi: 10.1213/00000539-199004000-00008.Anesth Analg. 1990.PMID: 2316881
Kirkegaard Nielsen H, May O.Kirkegaard Nielsen H, et al. Among authors: may o.Acta Anaesthesiol Belg. 1992;43(4):253-7.Acta Anaesthesiol Belg. 1992.PMID: 1300858
Werner MU, Kirkegaard Nielsen H, May O, Djernes M.Werner MU, et al. Among authors: may o.Acta Anaesthesiol Scand. 1988 Jul;32(5):395-400. doi: 10.1111/j.1399-6576.1988.tb02753.x.Acta Anaesthesiol Scand. 1988.PMID: 2842996
May O, Kirkegaard Nielsen H, Werner MU.May O, et al.Acta Anaesthesiol Scand. 1988 Apr;32(3):239-43. doi: 10.1111/j.1399-6576.1988.tb02722.x.Acta Anaesthesiol Scand. 1988.PMID: 3364149
Pfeiffer P, Hansen O, Madsen EL, May O.Pfeiffer P, et al. Among authors: may o.Acta Oncol. 1990;29(4):471-3. doi: 10.3109/02841869009090032.Acta Oncol. 1990.PMID: 2390274No abstract available.