function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bamber, Roger N & Bird, Graham & Błażewicz-Paszkowycz, Magdalena', 2],
    ['Bamber, Roger N.', 1],
    ['Bird, Graham J', 11],
    ['Bird, Graham J.', 1],
    ['Bird, Graham John', 16],
    ['Błażewicz-Paszkowycz, Magdalena & Bamber, Roger N.', 3],
    ['Guerrero-Kommritz, Jürgen', 26],
    ['Larsen, Kim', 6],
    ['Larsen, Kim & Araújo-Silva, Catarina L.', 6],
    ['Larsen, Kim & Shimomura, Michitaka', 8],
    ['Segadilha, Juliana Lopes & Bird, Graham & Tavares, Marcos', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=83)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);