function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barahona-Segovia, Rodrigo M. & Riera, Pamela', 6],
    ['Mengual, Ximo & Thompson, Christian', 2],
    ['Montoya, Augusto L.', 17],
    ['Morales, Mírian N. & Marinoni, Luciane', 1],
    ['Ramage, Thibault & Charlat, Sylvain & Mengual, Ximo', 1],
    ['Reemer, Menno & Morales, Mirian N.', 1],
    ['Sinclair, Bradley J.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);