function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brandt, Ioanne Friderico', 1],
    ['Cifuentes, Julio', 1],
    ['Dollfus, Adrien', 1],
    ['Kashani, Ghasem M. & Ahdiyeh, Abedini & Zahra, Hatami', 4],
    ['Kashani, Ghasem M. & Wägele, Johann-Wolfgang', 1],
    ['Ocampo-Maceda, Ana Teresa & Ruelas-Cabana, Carlos Miguel', 1],
    ['Pugh, P. J. A. & Dartnall, H. J. G. & McInnes, S. J.', 1],
    ['Reboleira, Ana Sofia P. S. & Gonçalves, Fernando & Oromí, Pedro', 4],
    ['Taiti, Stefano & Rossano, Claudia', 7],
    ['Taiti, Stefano & Wynne, J. Judson', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);