Four points are a bit outside the province of Vientiane Capital

[choisy]

There are 4 points that are a bit outside the province of Vientiane Capital: 5553, 6019, 4100 and 4354. They are not far though: all of them less than 1.6 km from the province. Is it known or is it imprecision in taking the coordinates?

[somphavanh]

all of the 4 patients live in the villages that are near the other provinces