function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 1],
    ['Herbert, David G.', 11],
    ['Lam, Katherine & Morton, Brian & Leung, K. F.', 1],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 2],
    ['Muratov, Igor V. & Heyns-Veale, Elodie', 1],
    ['Nielsen, Sven N. & Frassinetti, Daniel & Bandel, Klaus', 2],
    ['Pacaud, Jean-Michel', 5],
    ['Poppe, Guido & Tagaro, Sheila & Sarino, Jerlyn C.', 1],
    ['Simone, Luiz Ricardo L. & Cunha, Carlo M.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);