Style Error: [Gait and posture]
In text citations should not be superscripted and should be [] delimited, e.g. [2,5-7]. Bibliography reference numbers should also be [] delimited, e.g. [1]. Issue numbers should be included in () after volume numbers and references should end with a "." after page numbers e.g.
2003;76(2):59-67.
2003;76(2):59-67.
Otherwise, have a look at "Elsevier Vancouver" that should fit
(in our defense, the instructions on the journal's webpage are wrong...)
I looked at this one:
http://www.gaitposture.com/article/S0966-6362%2811%2900229-3/abstract
and there aren't any.
http://medicine.utah.edu/orthopaedics/pdf/biomechanical%20systems.pdf
here's another one that I found with a search:
http://www.marianjoylibrary.org/Residency/Key%20References/documents/Ref32.pdf
on this one only a few of the refs use issues. Clearly this is quality control issue so I'm sure that I can get away without them, but still for completeness I'd rather use them then not.
Looking at the most recent articles, currently in press:
http://www.sciencedirect.com/science/article/pii/S0966636213000398#
doesn't have any issue nos
http://www.sciencedirect.com/science/article/pii/S0966636213000349
uses them consistently and your 2nd example uses them sporadically. (your first example is from a different journal)
If you could get word from the chief editor on what they prefer that'd be great. On our side it's easier without the issue numbers and that would be in line with other similar journals published by Elsevier, but obviously we can accomodate either way.
Do let us know if you get word about issue nos. - if they're required we'll put them in.
Example:
G. Andersson, J. Hagman, R. Talianzadeh, A. Svedberg, H.C. Larsen, Effect of cognitive load on postural control, Brain Res. Bull. 58 (2002) 135–139. https://doi.org/10.1016/s0361-9230(02)00770-0.
should be:
Andersson G., Hagman J., Talianzadeh R., Svedberg A., Larsen H.C.. Effect of cognitive load on postural control. Brain Res. Bull. 2002;58:135–139. https://doi.org/10.1016/s0361-9230(02)00770-0.
maybe without the doi.......
Elsevier has a few standard styles they use among their journals.
As I see here in this recent paper, the style formats this correctly: https://reader.elsevier.com/reader/sd/pii/S0966636220300989?token=88BD9344C82A1EF8B9FC345A9867F0941A0975B62B52357C0A10D913F55384F1CACB791B900CB827D9C04B040BC79F2A