function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adnet, Sylvain & Cappetta, Henri & Guinot, Guillaume', 3],
    ['Biscoito, Manuel & Ribeiro, Cláudia & Freitas, Mafalda', 2],
    ['Ebersole, Jun A. & Cicimurri, David J. & Stringer, Gary L.', 4],
    ['Ebert, David A. & White, William T. & Ho, Hsuan-Ching', 1],
    ['Ebert, David A. & Wintner, Sabine P. & Kyne, Peter M.', 1],
    ['Elasmobranch, Its Implications For Global', 1],
    ['Golani, Daniel', 2],
    ['Golani, Daniel & Fricke, Ronald', 1],
    ['Haque, Alifa Bintha & White, William T. & Cavanagh, Rachel D.', 1],
    ['Henderson, Aaron C. & Reeve, Alan J. & Jabado, Rima W.', 1],
    ['LARSON, HELEN K. & WILLIAMS, REX S. & HAMMER, MICHAEL P.', 2],
    ['White, William T. & Ko’Ou, Alfred', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=20)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);