function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Agius, Dolores Rita & Galea, Maria Elizabeth', 5],
    ['Bogdanović, Sandro & Shuka, Lulëzim', 1],
    ['Ferrer-Gallego, P. Pablo & Laguna, Emilio & Crespo, Manuel B.', 3],
    ['Ilardi, Vincenzo & Brullo, Salvatore & Cusimano, Dario', 1],
    ['Jarvis, Charlie', 12],
    ['Jeanmonod, Daniel', 2],
    ['Jeanmonod, Daniel & Schlüssel, André', 1],
    ['Maryam Malekmohammadi & H. Walter Lack & Maria Lomonosova 3', 1],
    ['Nakamura, Koh & Rubite, Rosario Rivera & Kokubugata, Goro', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=27)',
    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);