function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Lonsdale, Owen', 21],
    ['Lonsdale, Owen & Marshall, Stephen A.', 20],
    ['Owen Lonsdale', 1],
    ['Rafael, José A. & Marques, Dayse W. A. & Limeira-De-Oliveira, F.', 1],
    ['Sasakawa, Mitsuhiro', 10],
    ['Wolff, Marta & Grisales, Diana', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=55)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);