<prompt> Translate the following text to EnglishUtafiti wa hivi karibuni umeonyesha uhusiano kati ya PM na mashambulizi ya moyo yasiyo ya kifo, ambayo inaonyesha kwamba baadhi ya vifo vinavyosababishwa na PM vinaweza kuwa kwa sababu ya mashambulizi ya moyo ya kifo.  <response>: In addition, recent studies have shown a relationship between PM and non-fatal heart attacks, which suggests that some of the deaths due to PM may be due to fatal heart attacks Peters et al. 