function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Don E. Wilson & Russell A. Mittermeier & Thomas E. Lacher, Jr', 1],
    ['D’Elía, Guillermo & Mora, Ismael & Myers, Phil & Owen, Robert D.', 1],
    ['Guy G. Musser & Michael D. Carleton', 2],
    ['James H. Honacki & Kenneth E. Kinman & James W. Koeppl', 3],
    ['Moreira, Camila Do Nascimento & Ventura, Karen', 1],
    ['Rocha, Rita G. & Ferreira, Eduardo & Costa, Barbara M. A.', 1],
    ['Weksler, M.', 1],
    ['Wilson, Don E. & Reeder, DeeAnn', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=12)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);