Pulmonary sub-specialty fellowships

Is it reasonable to look into sub-specialty fellowships like PH or lung transplant pretty early on if there is even an inkling of interest? Pretty stoked to start my PCCM fellowship so this may be premature, but I am leaning heavily in the direction of academic pulmonology with a heavy sub-specialty focus. It seems there are a few places that offer additional training in PH or lung transplant -- are these necessary or recommended for pursuit of an academic career in those fields? During my... Pulmonary sub-specialty fellowships
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums