function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aiello, Giuseppe & Barra, Diana & Parisi, Roberta', 1],
    ['Antonietto, Lucas Silveira & Machado, Cláudia Pinto', 2],
    ['Brandão, Simone N. & Saeedi, Hanieh & Brandt, Angelika', 3],
    ['Coimbra, João C. & Bottezini, Silvia R. & Machado, Cláudia P.', 2],
    ['Coimbra, João Carlos & De Morais, Anderson L. M.', 2],
    ['Guernet, Claude & Huyghe, Damien & Lartaud, Franck', 10],
    ['Guernet, Claude & Villier, Loïc', 9],
    ['Kempf, Eugen Karl', 1],
    ['Külköylüoğlu, Okan & Yavuzatmaca, Mehmet & Akdemir, Derya', 2],
    ['Liebau, Alexander', 1],
    ['Luz, Nathália Carvalho Da & Coimbra, João Carlos', 10],
    ['Meisch, Claude & Smith, Robin J. & Martens, Koen', 3],
    ['RAUSCH, LEA & STOICA, MARIUS & LAZAREV, SERGEI', 4],
    ['Schornikov, Evgeny I.', 12],
    ['de Morais, Anderson L. M. & Coimbra, João C.', 2],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=68)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);