function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 4],
    ['Ege, V.', 7],
    ['Fowler, Henry Weed & Phillips, R. J.', 1],
    ['Goren, Menachem & Galil, Bella S.', 2],
    ['Ho, Hsuan-Ching & Duhamel, Guy', 1],
    ['Ho, Hsuan-Ching & Iwamoto, Tomio', 1],
    ['Jordan, David Starr & Gilbert, Charles H.', 1],
    ['Maul, G. E.', 1],
    ['Parr, A. E.', 1],
    ['Poey, F.', 1],
    ['Reinhardt, J. C. H.', 1],
    ['Risso, A.', 1],
    ['Rofen, Robert R.', 1],
    ['Sarato, C.', 1],
    ['Zugmayer, E.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);