function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Carpintero, Diego Leonardo & Dellapé, Pablo Matías', 1],
    ['Castro-Huertas, Valentina & Minghetti, Eugenia', 4],
    ['Dellapé, Pablo Matías & Carpintero, Diego Leonardo', 2],
    ['Dellapé, Pablo Matías & Melo, María Cecilia', 2],
    ['Ghahari, Hassan & Moulet, Pierre & Ostovan, Hadi', 1],
    ['Heiss, Ernst & Eckelt, Andreas & Lederwasch, Manfred', 22],
    ['Ishikawa, Tadashi & Saito, Masayuki U. & Kishimoto-Yamada, Keiko', 6],
    ['María C. Melo & Gimena Dellapé & Leonela Olivera', 1],
    ['Samin, Najmeh & E, Rauno', 1],
    ['Souma, Jun & Ishikawa, Tadashi', 8],
    ['Stehlík, Jaroslav L.', 43],
    ['Stehlík, Jaroslav L. & Brailovsky, Harry', 3],
    ['Stehlík, Jaroslav L. & Hemala, Vladimír & Kment, Petr', 2],
    ['Stehlík, Jaroslav L. & Jindra, Zdeněk', 16],
    ['Stehlík, Jaroslav L. & Kment, Petr', 29],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=142)',
    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);