function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['A. Palomino-Alvarez, Lilian & Moreira Rocha, Rosana', 1],
    ['Herdman, William Abbott', 1],
    ['Kott, Patricia', 1],
    ['Lambert, Gretchen', 2],
    ['Monniot, Françoise', 9],
    ['Monniot, Françoise & Monniot, Claude', 1],
    ['Sanamyan, K. E. & Sanamyan, N. P.', 1],
    ['Turon, Xavier & Cañete, Juan I. & Sellanes, Javier', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);