function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bernard, F.', 1],
    ['Cedric A. Collingwood & Donat Agosti & Mostafa R. Sharaf', 1],
    ['Dlussky, G. M. & Radchenko, A. G.', 6],
    ['Eguchi, K. & Viet, B. T. & Yamane, S.', 1],
    ['Jimoh, Bunmi Omowumi & Gomez, Kiko & Kemabonta, Kehinde Abike', 5],
    ['Madl, Michael', 1],
    ['Radchenko, Alexander G. & Fisher, Brian L. & Esteves, Flavia A.', 7],
    ['Santschi, F.', 6],
    ['Smith, F.', 1],
    ['Ward, P. S.', 8],
    ['Ward, Philip S.', 39],
    ['Wheeler, W. M.', 5],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=84)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);