function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Berman, Gabriella H. & Hiley, Avery S. & Read, Geoffrey B.', 5],
    ['Fujikura, Katsunori & Fujiwara, Yoshihiro & Kawato, Masaru', 1],
    ['Fujiwara, Yoshihiro & Jimi, Naoto & Sumida, Paulo Y. G.', 1],
    ['Georgieva, Magdalena N. & Wiklund, Helena & Ramos, Dino A.', 2],
    ['Glover, Adrian G. & Källström, Björn & Smith, Craig R.', 1],
    ['Gunton, Laetitia M. & Kupriyanova, Elena K. & Alvestad, Tom', 1],
    ['Rouse, Greg W. & Goffredi, Shana K. & Johnson, Shannon B.', 14],
    ['Salazar-Vallejo, Sergio I. & Carrera-Parra, Luis F.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);