function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arnal, Michelle & Pérez, María E.', 2],
    ['Charles A. Woods', 17],
    ['Don E. Wilson & Thomas E. Lacher, Jr & Russell A. Mittermeier', 13],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 14],
    ['MacPhee, R. D. E. & Flemming, Clare', 1],
    ['Pearson, Oliver P. & Christie, M. I.', 1],
    ['Pérez, M. Julieta & Díaz, M. Mónica', 2],
    ['Rivera, Daniela S. & Vianna, Juliana A. & Ebensperger, Luis A.', 1],
    ['Samuels, Joshua X.', 1],
    ['Wilson, Don E. & Reeder, DeeAnn', 24]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=76)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);