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When researchers submitted a paper about a type of microparticle to PNAS, they wanted to give credit where it was due, and cite an unpublished manuscript that helped guide their work. But the journal’s policy forbid citing unpublished work, and the reference was removed before publication. Now, concerns from the authors of that unpublished work have prompted the journal to have a change of heart.
Continue reading PNAS wouldn’t let authors cite unpublished manuscript. Now, it admits it was wrong.







In the fall of 2015, out-of-work stem cell biologist Mavi Camarasa decided she had waited long enough. It had been three years since she and a colleague were, best they could tell, the first to successfully correct the most common cystic fibrosis mutation in stem cells derived from a patient.