6Miyamoto T, Inagaki M, Takaki H, et al. Integrated characterization of the human che- moreflex system controlling ventilation, using an equihbrium diagram [ J ]. Eur J Appl Physiol, 2004, 93 (3) : 340 - 346.
7Reid S, Wessely S, Crayford T, et al. Med- ically unexplained symptoms in frequent attend- ers of secondary health care: retrospective co- hort study [J]. BMJ, 2001, 322 (7289): 767.