function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amon, Diva J & Ziegler, Amanda F & Kremenetskaia, Antonina', 2],
    ['Gerdes, Klaas & Kihara, Terue Cristina & Martinez Arbizu, Pedro', 1],
    ['Goharimanesh, Mona & Stöhr, Sabine & Mirshamsi, Omid', 10],
    ['Gondim, Anne I. & Alonso, Carmen & Dias, Thelma L. P.', 5],
    ['Granja-Fernandez, Rebeca & Herrero-Perezrul, Maria D.', 4],
    ['Granja-Fernández, Rebeca & Hendrickx, Michel E.', 9],
    ['Humara-Gil, Karla J. & Granja-Fernández, Rebeca', 1],
    ['Martynov, Alexander', 11],
    ['Mcknight, Donald G.', 2],
    ['Nethupul, Hasitha & Stöhr, Sabine & Zhang, Haibin', 9],
    ['Okanishi, Masanori & Oba, Yuichi & Fujita, Yoshihisa', 2],
    ['O’Hara, Timothy D. & Thuy, Ben', 10],
    ['Pineda-Enriquez, Tania & Solis-Marin, Francisco A.', 2],
    ['Stöhr, Sabine', 5],
    ['Stöhr, Sabine & Hugall, Andrew F. & Thuy, Ben', 8],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=85)',
    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);