function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cui, Ruqiang & Zhuo, Kan & Wang, Honghong & Liao, Jinling', 1],
    ['Edm. Altherr, Aigle', 1],
    ['Girgan, Chantelle & Swart, Antoinette & Marais, Mariette', 3],
    ['Holovachov, Oleksandr', 18],
    ['Khudhir, Manda & Hodda, Mike & Nicholas, Evelyn', 1],
    ['Shahina, F. & Nasira, K. & Firoza, K. & Erum, Y. I.', 1],
    ['Sánchez-Monge, Alcides & Flores, Lorena & Salazar, Luis', 14],
    ['Zeng, Yongsan & Ye, Weimin & Tredway, Lane & Martin, Samuel', 1],
    ['Zhuo, Kan & Cui, Ruqiang & Ye, Weimin & Luo, Mei', 1],
    ['Árpád, Soós', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=42)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);