title: Response to Shackleton's heart: objections from the new world.
authors.affiliation: Retired anaesthetist, London SW4 0HW, UK.
authors.forename: Ian
authors.initials: I
authors.lastname: Calder
authors.affiliation: Consultant cardiologist, The Royal Brompton Hospital, London SW3 6NP, UK.
authors.forename: Jan
authors.initials: J
authors.lastname: Till
mesh_terms: D005101:Expeditions; D006321:Heart