function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Böttger-Schnack, Ruth', 4],
    ['Cheng, Yu-Rong & Ho, Ming-Jay & Dai, Chang-Feng', 5],
    ['Cho, Kyuhee & Böttger-Schnack, Ruth & Kim, Woong-Seo', 3],
    ['Cho, Kyuhee & Kim, Woong-Seo & Böttger-Schnack, Ruth', 3],
    ['Diaz, Analía R. & Álvarez, Victor Hugo Merlo', 8],
    ['Huys, Rony', 8],
    ['Ju-Shey', 4],
    ['Juan M. Fuentes-Reinés & Eduardo Suárez-Morales', 5],
    ['Lopes, Daniela A. & Gomes, Delir Correa & Knoff, Marcelo', 5],
    ['Luque, José L. & Tavares, Luiz E. R.', 7],
    ['Madinabeitia, Ione & Tang, Danny & Nagasawa, Kazuya', 7],
    ['Ramdane, Zouhir & Trilles, Jean-Paul', 5],
    ['Tang, Danny & Izawa, Kunihiko', 3],
    ['Tang, Danny & Uyeno, Daisuke & Nagasawa, Kazuya', 6],
    ['Uyeno, Daisuke', 4],
    ['Other (31)', 37]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=114)',
    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);