function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arias, Federico & Carvalho, Celso Morato De', 4],
    ['DESSAUER, HERBERT C. & COLE, CHARLES J. & TOWNSEND, CAROL R.', 3],
    ['Harvey, Michael B. & Ugueto, Gabriel N. & Gutberlet, Ronald L.', 5],
    ['Mccranie, James R. & Hedges, S. Blair', 2],
    ['Myers, Charles W. & Rodrigues, Miguel Trefaut', 1],
    ['Ribeiro-Júnior, Marco A. & Amaral, Silvana', 5],
    ['Silva, Marcélia Basto Da & Ávila-Pires, Teresa C. S.', 4],
    ['TAYLOR, HARRY L. & COLE, CHARLES J. & HARDY, LAURENCE M.', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    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);