function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 20],
    ['Araya, Juan Francisco', 2],
    ['Cavallari, Daniel Caracanhas & Almeida, Sérgio Mendonça', 4],
    ['Dall, William Healey', 3],
    ['DeVries, Thomas J.', 4],
    ['Glöer, Peter & Grego, Jozef & Erőss, Zoltán Péter', 2],
    ['Hansen, Thomas', 12],
    ['Luca, Javier Di & Zelaya, Diego G.', 7],
    ['Ng, Ting Hui & Dulipat, Jasrul & Foon, Junn Kitt', 3],
    ['Reid, David G. & Claremont, Martine', 4],
    ['Röding, Peter Friedrich', 4],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 4],
    ['Sowerby, James DeCarle', 4],
    ['Thivaiou, Danae & Harzhauser, Mathias & Koskeridou, Efterpi', 4],
    ['Watters, G. Thomas', 53],
    ['Other (22)', 30]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=160)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);