function drawChartTreatmentsPerSource() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arkiv för Zoologi', 1],
    ['Bulletin of the United States National Museum', 2],
    ['Copeia', 1],
    ['Fish. Res. Pap.', 1],
    ['Journal of the Fisheries Research Board of Canada', 1],
    ['Memoirs of the Carnegie Museum', 2],
    ['Proc. 4 th Pac. Sci. Congress, Java, 1929', 1],
    ['Proceedings of the California Academy of Sciences, Series 1', 1],
    ['Proceedings of the California Academy of Sciences, Series 2', 6],
    ['Proceedings of the United States National Museum, 3', 4],
    ['Rept. Comm. Fish. British Columbia', 1],
    ['Revista Chilena de Historia Natural', 1],
    ['Suikan-gakkai-shi', 1],
    ['The American Naturalist', 1],
    ['University of Washington Publications in Biology', 2],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Journal (n=27)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerSource', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerSource'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerSource);