function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brandt, Angelika & Andres, Hans Georg', 1],
    ['Cunha, Marina R. & Wilson, George D. F.', 18],
    ['Kavanagh, Fiona A. & Frutos, Inmaculada & Sorbe, Jean Claude', 4],
    ['Kavanagh, Fiona A. & Sorbe, Jean-Claude', 2],
    ['Kavanagh, Fiona A. & Wilson, George D. F. & Power, Anne Marie', 7],
    ['Merrin, Kelly L. & Poore, Gary C. B.', 2],
    ['Souza-Filho, Jesser F.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    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);