Need sources for a speech on WLS

I am giving a speech on WLS and want to cite sources on the long term success rates, complications, etc.

Any ideas on where to look? The source has to be credible!

FYI: this is a pursuasion speech for my college speech class and I am going in the direction against wls but honestly I could argue either way.

These are a few that I had listed on my website:

www.medpagetoday.com/MeetingCoverage/ASMBS/14954

www.medpagetoday.com/MeetingCoverage/ASMBS/20919

www.ncbi.nlm.nih.gov/pubmed/21359900

My surgeon's site has some good info:

http://www.northwestobesitysurgery.com/

LapSF is also a good source:

http://www.lapsf.com/

You can also just do some searches like "gastric bypass risks", "lapband complications", etc.

Copy of a post I have made several times.  I have PMed you the source of the article in which they appeared (see copyright issue below). This is not the complete table, I just took a selection; I included the extremes (bad and good) and a fairly random selection fo the rest.  The arguments for weight loss are less about teh los than about maintating the loss. I don't ahve the exadt figrue but of peopel who lose large amounts of weight, something like 5% of non-wls peolel are able to keep it off.

Please note (as my doc pointed out) that the first set all deal with bands implanted using the older perigastric technique which had a HIGHER complication rate than the pars flaccida which is now used. I do not know the country of origin of the studies, neither have I read them myself. I was given a warning that the journal in which they appear is strictly copyright and so I am not publishing that on the net! But if anyone wants to know, PM me.  I am not clear on copyright law and don't want to fall foul of it!

Clearly the results are not consistent!

                     patients     over time     port/tubing probs   slips/dilation    erosion   re-ops

Favrotti           1791           12 years           11.2%                   3.9%               0.9%        5.9%
Vertuyen         543              7                         2.9                       4.6                   0.9            6.8
Weiner            984              8                         2.5                       4.5                   0.3            3.9
O'Brien           709              6                          3.6                    12.5                   2.8           18.9
Chevalier      1000            7                          5.7                     10.4                  0.3             11.0
Zehetner         190             6                         2.6                       2.6                   2.1             8.5
Zinzindohoue  500           3                          7.8                       8.6                     0              10.4
Tolonen            280           7                          10.6                     6.5                   3.3            24.4
Miceletto           684           5                          6.8                        6.1                    1.0            6.3
Dargent           1180           7                         none stated            8.8                  1.8           12.7

The following are shorter term studies all using the more modern pars flaccida technique.

Ponce            1014             4                         1.2                        2.3                    0.2         8 removed
parikh              749              3                         2.4                        2.9                   0.1           10.7
Holloway          500             3                        9.2                        5.0                   1.0           not stated
Watkins          2411            3                         2.3                        5.1                     0.1              8
Singhal           1140            3                        0.35                      0.26                  0.09         2.1