function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adamson, Eleanor A. S. & Britz, Ralf & Lieng, Sopha', 1],
    ['Aqmal-Naser, Mohamad & Ali, Norsyafira Anis', 5],
    ['Britz, Ralf', 1],
    ['Britz, Ralf & Adamson, Eleanor & Raghavan, Rajeev & Ali, Anvar', 1],
    ['Britz, Ralf & Dahanukar, Neelesh & Anoop, V. K. & Ali, Anvar', 1],
    ['Britz, Ralf & Hui, Tan Heok & Rüber, Lukas', 4],
    ['Chan, Jeffery C. F. & Tsang, Alphonse H. F. & Yau, Sze-man', 5],
    ['Chaudhuri, B. L.', 1],
    ['Eagderi, Soheil & Mouludi-Saleh, Atta & Esmaeili, Hamid Reza', 1],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 1],
    ['Ikhwanuddin, Mat Esa Mohd & Amal, Mohammad Noor Azmai', 2],
    ['Lalhlimpuia, Denis Van & Lalronunga, Samuel', 7],
    ['Ng, Casey Keat Chuan & Lim, Teow Yeong & Ahmad, Amirrudin', 6],
    ['Sulaiman, Zohrah & Hui, Tan Heok & Lim, Kelvin Kok Peng', 3],
    ['Çiçek, Erdoğan & Fricke, Ronald & Eagderi, Soheil', 4],
    ['Other (14)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=57)',
    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);