function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bi, Shundong & Meng, Jin & Wu, Wenyu & Ye, Jie & Ni, Xijun', 5],
    ['Don E. Wilson & Thomas E. Lacher, Jr & Russell A. Mittermeier', 5],
    ['Fritz Dieterlen', 10],
    ['Hartman, Julian & Van De Weerd, Andrew A. & Bruijn, Hans De', 12],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 10],
    ['Marivaux, Laurent & Vianey-Liaud, Monique & Jaeger, Jean-Jacques', 1],
    ['Oliver, Adriana & Carro-Rodríguez, Patricia M.', 3],
    ['Vianey-Liaud, Monique & Rodrigues, Helder Gomes', 3],
    ['Wilson, Don E. & Reeder, DeeAnn', 10]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=59)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);