Evaluating echocardiogram and indirect blood pressure results in male western lowland gorillas (Gorilla gorilla gorilla) during three phases of an anesthetic protocol. - Napier JE; Kutinsky IB; Armstrong DL; Orton D; Hicks CL; Waldoch J; Devlin WH (Journal of zoo and wildlife medicine : official publication of the American Association of Zoo Veterinarians, 2013)