Studying trial communities: anthropological and historical inquiries into ethos, politics and economy of medical research in Africa / P. Wenzel Geissler -- Writing knowledge and acknowledgement: possibilities in medical research / Susan Reynolds Whyte -- Can one rely on knowledge? / Marilyn Strathern -- Being 'with MRC': infant care and the social meanings of cohort membership in Gambia's plural therapeutic landscapes / Melissa Leach and James Fairhead -- Contextualising ethics in AIDS research: or, the morality of knowledge production in ethnographic fieldwork on 'the unspeakable' / Hansjörg Dilger -- Testing a new drug for leprosy: clofazimine and its precursors in Ireland and Nigeria, 1944-1966 / John Manton -- Elucidating ethics in practice: focus on accountability / George Ulrich -- When physicians meet: local medical knowledge and global public goods / Steven Feierman -- The plausibility design, quasi-experiments, and real world research: a case study from the interdisciplinary monitoring project for antimalarial combination treatment in Tanzania / S. Patrick Kachur -- Remember Bambali: evidence, ethics and the co-production of truth / Ann Kelly -- Foetuses, facts and frictions: insights from ultrasound research in Tanzania / Babette Müller-Rockstroh -- Healers and scientists: the epistemological politics of research about medicinal plants in Tanzania, or 'moving away from traditional medicine' / Stacey A. Langwick -- Parasite lost: remembering modern times with Kenyan government medical scientists / P. Wenzel Geissler -- Is the sharia of the doctors killing the people? a local debate on ethics and the control of HIV/AIDS in a rural area in Kenya / Suzette Heald -- The historical interface between the state and medical science in Africa: Kenya's case / Kenneth S. Ombongi -- The intimate rules of the French coopération : morality, race and the postcolonial division of scientific work at the Pasteur Institute of Cameroon / Guillaume Lachenal -- 'The mosquito taken at the beer-hall': malaria research and control on Zambia's copperbelt / Lyn Schumaker -- Trial communities: HIV and therapeutic citizenship in West Africa / Vin-Kim Nguyen -- Differences in medicine, differences in ethics: or, When is it research and when is it kidnapping, or is that even the right question? / Luise White.