function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alves, Philippe V. & Vieira, Fabiano M. & Santos, Cláudia P.', 1],
    ['Angulo, Arturo & López, Myrna I. & Bussing, William A.', 2],
    ['Arai, Hisao P. & Smith, John W.', 1],
    ['Bigelow, H. B. & Schroeder, W. C.', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Deng, S. - M. & Xiong, G. - Q. & Zhan, H. - X.', 1],
    ['Didier, D. A. & Stehmann, M.', 1],
    ['Ebert, David A. & White, William T. & Ho, Hsuan-Ching', 2],
    ['Ebert, David A. & Wintner, Sabine P. & Kyne, Peter M.', 5],
    ['Laan, Richard Van Der & Eschmeyer, William N. & Fricke, Ronald', 1],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 1],
    ['Smith, Moya & Manzanares, Esther & Underwood, Charlie', 1],
    ['Tanaka, Shigeho', 1],
    ['Townsend, C. H. & Nichols, J. T.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=20)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);