function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Figuerola, Blanca & Gordon, Dennis P. & Cristobo, Javier', 1],
    ['Gerovasileiou, Vasilis & Rosso, Antonietta', 8],
    ['Judith L Winston', 2],
    ['Matsuyama, Kei & Titschack, Jürgen & Baum, Daniel', 2],
    ['Souto, J. & Reverter-Gil, O.', 1],
    ['Souto, Javier & Berning, Björn & Ostrovsky, Andrew N.', 1],
    ['Vieira, Leandro M. & Gordon, Dennis P. & Souza, Facelucia B. C.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    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);