All:
Article II
No person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither shall any Person be eligible to that Office who shall not have attained to the Age of thirty-five Years, and been fourteen Years a Resident within the United States.
As commas are used now, the second comma wouldn't be written. Besides, in the context of the time of adoption (preventing foreign influences), that's the only way it made sense, with citizens having been born elsewhere having been eligible only at the time of adoption of our Constitution.
The meaning of the phrase, natural born citizen, is obvious to us all. I disagree that those born in other countries to American parents should be described as natural born citizens for the purpose of presidential elections, because too many of them are exposed too much to foreign culture and government (or worse, to global government)--antithetical to the reasons our founding fathers authored such language into our Constitution (for avoiding foreign influences in our government). Too many Americans on foreign soil for more than short visits are now more loyal to foreign nations or global government than to the U.S.A.